diff --git a/data/resources/old/user/textbook/04.md b/data/resources/old/user/textbook/04.md
deleted file mode 100755
index e69de29..0000000
diff --git a/data/resources/old/user/textbook/05.md b/data/resources/old/user/textbook/05.md
deleted file mode 100755
index e69de29..0000000
diff --git a/data/resources/old/user/textbook/06.md b/data/resources/old/user/textbook/06.md
deleted file mode 100755
index e69de29..0000000
diff --git a/data/resources/old/user/textbook/09.md b/data/resources/old/user/textbook/09.md
deleted file mode 100755
index e69de29..0000000
diff --git a/data/resources/old/user/textbook/10.md b/data/resources/old/user/textbook/10.md
deleted file mode 100755
index e69de29..0000000
diff --git a/data/resources/old/user/textbook/11.md b/data/resources/old/user/textbook/11.md
deleted file mode 100755
index e69de29..0000000
diff --git a/web/backend/assets/.gitignore b/web/backend/assets/.gitignore
new file mode 100644
index 0000000..ee518af
--- /dev/null
+++ b/web/backend/assets/.gitignore
@@ -0,0 +1,3 @@
+*
+*.*
+!.gitignore
\ No newline at end of file
diff --git a/web/backend/package.json b/web/backend/package.json
index 156d69a..35a2c4d 100644
--- a/web/backend/package.json
+++ b/web/backend/package.json
@@ -8,15 +8,17 @@
     "dev": "ts-node-dev src/index.ts"
   },
   "dependencies": {
-    "cheerio": "^1.0.0-rc.3",
+    "@patarapolw/qsearch": "^1.1.1",
     "cors": "^2.8.5",
     "express": "^4.17.1",
+    "fast-glob": "^3.2.2",
+    "gray-matter": "^4.0.2",
+    "nedb-promises": "^4.0.1",
     "pug": "^2.0.4",
     "scope-css": "^1.2.1",
     "showdown": "^1.9.1"
   },
   "devDependencies": {
-    "@types/cheerio": "^0.22.16",
     "@types/cors": "^2.8.6",
     "@types/express": "^4.17.2",
     "@types/node": "^13.7.6",
diff --git a/web/backend/scripts/prepare.ts b/web/backend/scripts/prepare.ts
new file mode 100644
index 0000000..40f79bb
--- /dev/null
+++ b/web/backend/scripts/prepare.ts
@@ -0,0 +1,79 @@
+import fs from 'fs'
+import crypto from 'crypto'
+
+import matter from 'gray-matter'
+import glob from 'fast-glob'
+import DataStore from 'nedb-promises'
+
+import MakeHtml from '../src/utils/make-html'
+
+// eslint-disable-next-line camelcase
+const excerpt_separator = '<!-- excerpt_separator -->'
+const db = new DataStore('assets/data.nedb')
+
+;(async () => {
+  await db.ensureIndex({ fieldName: 'h', unique: true })
+
+  const files = await glob('**/*.md', {
+    cwd: '../../data'
+  })
+  await Promise.all(files.map(async (f) => {
+    let type = ''
+
+    if (f.startsWith('slides/')) {
+      type = 'slides'
+    }
+
+    const s = fs.readFileSync(`../../data/${f}`, 'utf8')
+    const h = crypto.createHash('sha256').update(s).digest('base64')
+
+    const { data, content, excerpt } = matter(s, {
+      excerpt_separator
+    })
+
+    try {
+      if (type === 'slides') {
+        const slides = content.split(/\n===\n/g).map((ss) => {
+          return ss.split(/\n--\n/g).map((s) => {
+            const make = new MakeHtml()
+            return make.parse(s)
+          }).reduce((prev, c, i) => ({ ...prev, [i.toString()]: c }), {} as any)
+        }).reduce((prev, c, i) => ({ ...prev, [i.toString()]: c }), {} as any)
+
+        const computedExcerpt = slides['0']['0']
+
+        await db.insert({
+          ...data,
+          filename: f,
+          h,
+          excerpt: computedExcerpt,
+          slides
+        })
+      } else {
+        const make = new MakeHtml()
+
+        let computedExcerpt = ''
+        let computedContent = ''
+
+        if (excerpt) {
+          computedExcerpt = make.parse(excerpt)
+          computedContent = make.parse(content.substr(excerpt.length + excerpt_separator.length))
+        } else {
+          computedContent = make.parse(content)
+          computedExcerpt = computedContent.substr(0, 500).replace(/<[^>]*$/, '')
+          computedContent = computedContent.substr(computedExcerpt.length)
+        }
+
+        await db.insert({
+          ...data,
+          filename: f,
+          h,
+          excerpt: computedExcerpt,
+          remaining: computedContent
+        })
+      }
+    } catch (e) {
+      console.error(e, f)
+    }
+  }))
+})().catch(console.error)
diff --git a/web/backend/src/api/data.ts b/web/backend/src/api/data.ts
new file mode 100644
index 0000000..9d4dc79
--- /dev/null
+++ b/web/backend/src/api/data.ts
@@ -0,0 +1,22 @@
+import fs from 'fs'
+import path from 'path'
+
+import { Router } from 'express'
+import MakeHtml from '../utils/make-html'
+
+const dataRouter = Router()
+
+dataRouter.get('/*', (req, res) => {
+  const p = path.join('../../data', `${req.params[0]}.md`)
+
+  if (fs.existsSync(p)) {
+    const d = fs.readFileSync(p, 'utf8')
+    const html = new MakeHtml().parse(d)
+
+    res.send(html)
+  } else {
+    res.sendStatus(404)
+  }
+})
+
+export default dataRouter
diff --git a/web/backend/src/api/index.ts b/web/backend/src/api/index.ts
index fe3481a..e067cc2 100644
--- a/web/backend/src/api/index.ts
+++ b/web/backend/src/api/index.ts
@@ -1,76 +1,12 @@
-import fs from 'fs'
-import path from 'path'
-
 import { Router } from 'express'
 import cors from 'cors'
-import pug from 'pug'
-// @ts-ignore
-import scopeCss from 'scope-css'
-import showdown from 'showdown'
+import dataRouter from './data'
 
 const apiRouter = Router()
 apiRouter.use(cors())
 
-const md = new showdown.Converter({
-  metadata: true
-})
-md.addExtension({
-  type: 'lang',
-  filter (text) {
-    const rowRegex = /(?:(?:^|\r?\n)(?:\| )?(?:(?:.* \| )+.+)*(?:.* \| )+.+(?: \|)?(?:$|\r?\n))+/m
-    text = text.replace(rowRegex, (p0) => {
-      return `<table>${
-        p0.trim().split('\n').map((pi) => {
-          pi = pi.trim().replace(/^|/, '').replace(/|$/, '')
-          return `<tr>${
-            pi.split(' | ').map((x) => x.trim()).map((qi) => {
-              return `<td>${qi}</td>`
-            })
-          }</tr>`
-        })
-      }</table>`
-    })
-    return text
-  }
-}, 'table')
+apiRouter.get('/', (req, res) => res.sendStatus(200))
 
-apiRouter.get('/data/*', (req, res, next) => {
-  const p = path.join('../../data', `${req.params[0]}.md`)
-
-  if (fs.existsSync(p)) {
-    let d = fs.readFileSync(p, 'utf8')
-    const id = 'el' + Math.random().toString(36).substr(2)
-
-    d = d
-      .replace(/```pug parsed\n(.+?)\n```/gs, (_, p1) => {
-        return pug.compile(p1, {
-          filters: {
-            markdown: (s: string) => `<x-markdown>${s}</x-markdown>`
-          }
-        })()
-      })
-      .replace(/```css parsed\n(.+?)\n```/gs, (_, p1) => {
-        return `<style>${scopeCss(p1, `#${id}`)}</style>`
-      })
-      .replace(/<x-markdown([^>]*)>(.+?)<\/x-markdown>/gs, (_, p1: string, p2: string) => {
-        const lines = p2.split('\n')
-        const marginRegex = new RegExp(`^ {1,${Math.max(0,
-          ...lines
-            .map((line) => /^ +[^ ]/.exec(line))
-            .map((m) => m ? m[0].length : 0)
-        )}}`)
-
-        return `<span data-markdown ${p1}>${
-          lines.map((line) => line.replace(marginRegex, '')).join('\n')
-        }</span>`
-      })
-
-    const html = `<div id=${id}>${md.makeHtml(d)}</div>`
-
-    res.send(html)
-  } else {
-    res.sendStatus(404)
-  }
-})
+apiRouter.use('/data', dataRouter)
 
 export default apiRouter
diff --git a/web/backend/src/utils/make-html.ts b/web/backend/src/utils/make-html.ts
new file mode 100644
index 0000000..1f286e0
--- /dev/null
+++ b/web/backend/src/utils/make-html.ts
@@ -0,0 +1,60 @@
+import pug from 'pug'
+// @ts-ignore
+import scopeCss from 'scope-css'
+import showdown from 'showdown'
+
+export default class MakeHtml {
+  md = new showdown.Converter({
+    metadata: true
+  })
+
+  constructor (public id = 'el-' + Math.random().toString(36).substr(2)) {
+    this.md.addExtension({
+      type: 'lang',
+      filter (text) {
+        const rowRegex = /(?:(?:^|\r?\n)(?:\| )?(?:(?:.* \| )+.+)*(?:.* \| )+.+(?: \|)?(?:$|\r?\n))+/m
+        text = text.replace(rowRegex, (p0) => {
+          return `<table>${
+            p0.trim().split('\n').map((pi) => {
+              pi = pi.trim().replace(/^|/, '').replace(/|$/, '')
+              return `<tr>${
+                pi.split(' | ').map((x) => x.trim()).map((qi) => {
+                  return `<td>${qi}</td>`
+                })
+              }</tr>`
+            })
+          }</table>`
+        })
+        return text
+      }
+    }, 'table')
+  }
+
+  parse (d: string) {
+    d = d
+      .replace(/```pug parsed\n(.+?)\n```/gs, (_, p1) => {
+        return pug.compile(p1, {
+          filters: {
+            markdown: (s: string) => `<x-markdown>${s}</x-markdown>`
+          }
+        })()
+      })
+      .replace(/```css parsed\n(.+?)\n```/gs, (_, p1) => {
+        return `<style>${scopeCss(p1, `#${this.id}`)}</style>`
+      })
+      .replace(/<x-markdown([^>]*)>(.+?)<\/x-markdown>/gs, (_, p1: string, p2: string) => {
+        const lines = p2.split('\n')
+        const marginRegex = new RegExp(`^ {1,${Math.max(0,
+          ...lines
+            .map((line) => /^ +[^ ]/.exec(line))
+            .map((m) => m ? m[0].length : 0)
+        )}}`)
+
+        return `<span data-markdown ${p1}>${
+          lines.map((line) => line.replace(marginRegex, '')).join('\n')
+        }</span>`
+      })
+
+    return `<div id=${this.id}>${this.md.makeHtml(d)}</div>`
+  }
+}
diff --git a/web/backend/yarn.lock b/web/backend/yarn.lock
index ea2dd64..2f1145c 100644
--- a/web/backend/yarn.lock
+++ b/web/backend/yarn.lock
@@ -2,6 +2,36 @@
 # yarn lockfile v1
 
 
+"@nodelib/fs.scandir@2.1.3":
+  version "2.1.3"
+  resolved "https://registry.yarnpkg.com/@nodelib/fs.scandir/-/fs.scandir-2.1.3.tgz#3a582bdb53804c6ba6d146579c46e52130cf4a3b"
+  integrity sha512-eGmwYQn3gxo4r7jdQnkrrN6bY478C3P+a/y72IJukF8LjB6ZHeB3c+Ehacj3sYeSmUXGlnA67/PmbM9CVwL7Dw==
+  dependencies:
+    "@nodelib/fs.stat" "2.0.3"
+    run-parallel "^1.1.9"
+
+"@nodelib/fs.stat@2.0.3", "@nodelib/fs.stat@^2.0.2":
+  version "2.0.3"
+  resolved "https://registry.yarnpkg.com/@nodelib/fs.stat/-/fs.stat-2.0.3.tgz#34dc5f4cabbc720f4e60f75a747e7ecd6c175bd3"
+  integrity sha512-bQBFruR2TAwoevBEd/NWMoAAtNGzTRgdrqnYCc7dhzfoNvqPzLyqlEQnzZ3kVnNrSp25iyxE00/3h2fqGAGArA==
+
+"@nodelib/fs.walk@^1.2.3":
+  version "1.2.4"
+  resolved "https://registry.yarnpkg.com/@nodelib/fs.walk/-/fs.walk-1.2.4.tgz#011b9202a70a6366e436ca5c065844528ab04976"
+  integrity sha512-1V9XOY4rDW0rehzbrcqAmHnz8e7SKvX27gh8Gt2WgB0+pdzdiLV83p72kZPU+jvMbS1qU5mauP2iOvO8rhmurQ==
+  dependencies:
+    "@nodelib/fs.scandir" "2.1.3"
+    fastq "^1.6.0"
+
+"@patarapolw/qsearch@^1.1.1":
+  version "1.1.1"
+  resolved "https://registry.yarnpkg.com/@patarapolw/qsearch/-/qsearch-1.1.1.tgz#58fb4c53a1a89f2981a88f848287e4ebd399aba1"
+  integrity sha512-Z7H3FX5WWYwGK4ZpVZqHBHQyhtqYOZaTW1FIWb6aspHgKgkym/YixpVDzI+pRK6Wa/oN/UhwJnKt/twOfJcL3g==
+  dependencies:
+    dot-prop "^5.2.0"
+    escape-string-regexp "^2.0.0"
+    shlex "^2.0.1"
+
 "@types/babel-types@*", "@types/babel-types@^7.0.0":
   version "7.0.7"
   resolved "https://registry.yarnpkg.com/@types/babel-types/-/babel-types-7.0.7.tgz#667eb1640e8039436028055737d2b9986ee336e3"
@@ -22,13 +52,6 @@
     "@types/connect" "*"
     "@types/node" "*"
 
-"@types/cheerio@^0.22.16":
-  version "0.22.16"
-  resolved "https://registry.yarnpkg.com/@types/cheerio/-/cheerio-0.22.16.tgz#c748a97b8a6f781b04bbda4a552e11b35bcc77e4"
-  integrity sha512-bSbnU/D4yzFdzLpp3+rcDj0aQQMIRUBNJU7azPxdqMpnexjUSvGJyDuOBQBHeOZh1mMKgsJm6Dy+LLh80Ew4tQ==
-  dependencies:
-    "@types/node" "*"
-
 "@types/connect@*":
   version "3.4.33"
   resolved "https://registry.yarnpkg.com/@types/connect/-/connect-3.4.33.tgz#31610c901eca573b8713c3330abc6e6b9f588546"
@@ -154,6 +177,13 @@ arg@^4.1.0:
   resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.3.tgz#269fc7ad5b8e42cb63c896d5666017261c144089"
   integrity sha512-58S9QDqG0Xx27YwPSt9fJxivjYl432YCwfDMfZ+71RAqUrZef7LrKQZ3LHLOwCS4FLNBplP533Zx895SeOCHvA==
 
+argparse@^1.0.7:
+  version "1.0.10"
+  resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
+  integrity sha512-o5Roy6tNG4SL/FOkCAN6RzjiakZS25RLYFrcMttJqbdd8BWrnA+fGz57iN5Pb06pvBGvl5gQ0B48dJlslXvoTg==
+  dependencies:
+    sprintf-js "~1.0.2"
+
 array-find-index@^1.0.1:
   version "1.0.2"
   resolved "https://registry.yarnpkg.com/array-find-index/-/array-find-index-1.0.2.tgz#df010aa1287e164bbda6f9723b0a96a1ec4187a1"
@@ -169,6 +199,11 @@ asap@~2.0.3:
   resolved "https://registry.yarnpkg.com/asap/-/asap-2.0.6.tgz#e50347611d7e690943208bbdafebcbc2fb866d46"
   integrity sha1-5QNHYR1+aQlDIIu9r+vLwvuGbUY=
 
+async@0.2.10:
+  version "0.2.10"
+  resolved "https://registry.yarnpkg.com/async/-/async-0.2.10.tgz#b6bbe0b0674b9d719708ca38de8c237cb526c3d1"
+  integrity sha1-trvgsGdLnXGXCMo43owjfLUmw9E=
+
 babel-runtime@^6.26.0:
   version "6.26.0"
   resolved "https://registry.yarnpkg.com/babel-runtime/-/babel-runtime-6.26.0.tgz#965c7058668e82b55d7bfe04ff2337bc8b5647fe"
@@ -197,6 +232,13 @@ balanced-match@^1.0.0:
   resolved "https://registry.yarnpkg.com/balanced-match/-/balanced-match-1.0.0.tgz#89b4d199ab2bee49de164ea02b89ce462d71b767"
   integrity sha1-ibTRmasr7kneFk6gK4nORi1xt2c=
 
+binary-search-tree@0.2.5:
+  version "0.2.5"
+  resolved "https://registry.yarnpkg.com/binary-search-tree/-/binary-search-tree-0.2.5.tgz#7dbb3b210fdca082450dad2334c304af39bdc784"
+  integrity sha1-fbs7IQ/coIJFDa0jNMMErzm9x4Q=
+  dependencies:
+    underscore "~1.4.4"
+
 body-parser@1.19.0:
   version "1.19.0"
   resolved "https://registry.yarnpkg.com/body-parser/-/body-parser-1.19.0.tgz#96b2709e57c9c4e09a6fd66a8fd979844f69f08a"
@@ -213,11 +255,6 @@ body-parser@1.19.0:
     raw-body "2.4.0"
     type-is "~1.6.17"
 
-boolbase@~1.0.0:
-  version "1.0.0"
-  resolved "https://registry.yarnpkg.com/boolbase/-/boolbase-1.0.0.tgz#68dff5fbe60c51eb37725ea9e3ed310dcc1e776e"
-  integrity sha1-aN/1++YMUes3cl6p4+0xDcwed24=
-
 brace-expansion@^1.1.7:
   version "1.1.11"
   resolved "https://registry.yarnpkg.com/brace-expansion/-/brace-expansion-1.1.11.tgz#3c7fcbf529d87226f3d2f52b966ff5271eb441dd"
@@ -226,6 +263,13 @@ brace-expansion@^1.1.7:
     balanced-match "^1.0.0"
     concat-map "0.0.1"
 
+braces@^3.0.1:
+  version "3.0.2"
+  resolved "https://registry.yarnpkg.com/braces/-/braces-3.0.2.tgz#3454e1a462ee8d599e236df336cd9ea4f8afe107"
+  integrity sha512-b8um+L1RzM3WDSzvhm6gIz1yfTbBt6YTlcEKAvsmqCZZFw46z626lVj9j1yEPW33H5H+lBQpZMP1k8l+78Ha0A==
+  dependencies:
+    fill-range "^7.0.1"
+
 buffer-from@^1.0.0:
   version "1.1.1"
   resolved "https://registry.yarnpkg.com/buffer-from/-/buffer-from-1.1.1.tgz#32713bc028f75c02fdb710d7c7bcec1f2c6070ef"
@@ -274,18 +318,6 @@ character-parser@^2.1.1:
   dependencies:
     is-regex "^1.0.3"
 
-cheerio@^1.0.0-rc.3:
-  version "1.0.0-rc.3"
-  resolved "https://registry.yarnpkg.com/cheerio/-/cheerio-1.0.0-rc.3.tgz#094636d425b2e9c0f4eb91a46c05630c9a1a8bf6"
-  integrity sha512-0td5ijfUPuubwLUu0OBoe98gZj8C/AA+RW3v67GPlGOrvxWjZmBXiBCRU+I8VEiNyJzjth40POfHiz2RB3gImA==
-  dependencies:
-    css-select "~1.2.0"
-    dom-serializer "~0.1.1"
-    entities "~1.1.1"
-    htmlparser2 "^3.9.1"
-    lodash "^4.15.0"
-    parse5 "^3.0.1"
-
 clean-css@^4.1.11:
   version "4.2.3"
   resolved "https://registry.yarnpkg.com/clean-css/-/clean-css-4.2.3.tgz#507b5de7d97b48ee53d84adb0160ff6216380f78"
@@ -373,21 +405,6 @@ cors@^2.8.5:
     object-assign "^4"
     vary "^1"
 
-css-select@~1.2.0:
-  version "1.2.0"
-  resolved "https://registry.yarnpkg.com/css-select/-/css-select-1.2.0.tgz#2b3a110539c5355f1cd8d314623e870b121ec858"
-  integrity sha1-KzoRBTnFNV8c2NMUYj6HCxIeyFg=
-  dependencies:
-    boolbase "~1.0.0"
-    css-what "2.1"
-    domutils "1.5.1"
-    nth-check "~1.0.1"
-
-css-what@2.1:
-  version "2.1.3"
-  resolved "https://registry.yarnpkg.com/css-what/-/css-what-2.1.3.tgz#a6d7604573365fe74686c3f311c56513d88285f2"
-  integrity sha512-a+EPoD+uZiNfh+5fxw2nO9QwFa6nJe2Or35fGY6Ipw1R3R4AGz1d1TEZrCegvw2YTmZ0jXirGYlzxxpYSHwpEg==
-
 currently-unhandled@^0.4.1:
   version "0.4.1"
   resolved "https://registry.yarnpkg.com/currently-unhandled/-/currently-unhandled-0.4.1.tgz#988df33feab191ef799a61369dd76c17adf957ea"
@@ -440,54 +457,12 @@ doctypes@^1.1.0:
   resolved "https://registry.yarnpkg.com/doctypes/-/doctypes-1.1.0.tgz#ea80b106a87538774e8a3a4a5afe293de489e0a9"
   integrity sha1-6oCxBqh1OHdOijpKWv4pPeSJ4Kk=
 
-dom-serializer@0:
-  version "0.2.2"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.2.2.tgz#1afb81f533717175d478655debc5e332d9f9bb51"
-  integrity sha512-2/xPb3ORsQ42nHYiSunXkDjPLBaEj/xTwUO4B7XCZQTRk7EBtTOPaygh10YAAh2OI1Qrp6NWfpAhzswj0ydt9g==
+dot-prop@^5.2.0:
+  version "5.2.0"
+  resolved "https://registry.yarnpkg.com/dot-prop/-/dot-prop-5.2.0.tgz#c34ecc29556dc45f1f4c22697b6f4904e0cc4fcb"
+  integrity sha512-uEUyaDKoSQ1M4Oq8l45hSE26SnTxL6snNnqvK/VWx5wJhmff5z0FUVJDKDanor/6w3kzE3i7XZOk+7wC0EXr1A==
   dependencies:
-    domelementtype "^2.0.1"
-    entities "^2.0.0"
-
-dom-serializer@~0.1.1:
-  version "0.1.1"
-  resolved "https://registry.yarnpkg.com/dom-serializer/-/dom-serializer-0.1.1.tgz#1ec4059e284babed36eec2941d4a970a189ce7c0"
-  integrity sha512-l0IU0pPzLWSHBcieZbpOKgkIn3ts3vAh7ZuFyXNwJxJXk/c4Gwj9xaTJwIDVQCXawWD0qb3IzMGH5rglQaO0XA==
-  dependencies:
-    domelementtype "^1.3.0"
-    entities "^1.1.1"
-
-domelementtype@1, domelementtype@^1.3.0, domelementtype@^1.3.1:
-  version "1.3.1"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-1.3.1.tgz#d048c44b37b0d10a7f2a3d5fee3f4333d790481f"
-  integrity sha512-BSKB+TSpMpFI/HOxCNr1O8aMOTZ8hT3pM3GQ0w/mWRmkhEDSFJkkyzz4XQsBV44BChwGkrDfMyjVD0eA2aFV3w==
-
-domelementtype@^2.0.1:
-  version "2.0.1"
-  resolved "https://registry.yarnpkg.com/domelementtype/-/domelementtype-2.0.1.tgz#1f8bdfe91f5a78063274e803b4bdcedf6e94f94d"
-  integrity sha512-5HOHUDsYZWV8FGWN0Njbr/Rn7f/eWSQi1v7+HsUVwXgn8nWWlL64zKDkS0n8ZmQ3mlWOMuXOnR+7Nx/5tMO5AQ==
-
-domhandler@^2.3.0:
-  version "2.4.2"
-  resolved "https://registry.yarnpkg.com/domhandler/-/domhandler-2.4.2.tgz#8805097e933d65e85546f726d60f5eb88b44f803"
-  integrity sha512-JiK04h0Ht5u/80fdLMCEmV4zkNh2BcoMFBmZ/91WtYZ8qVXSKjiw7fXMgFPnHcSZgOo3XdinHvmnDUeMf5R4wA==
-  dependencies:
-    domelementtype "1"
-
-domutils@1.5.1:
-  version "1.5.1"
-  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.5.1.tgz#dcd8488a26f563d61079e48c9f7b7e32373682cf"
-  integrity sha1-3NhIiib1Y9YQeeSMn3t+Mjc2gs8=
-  dependencies:
-    dom-serializer "0"
-    domelementtype "1"
-
-domutils@^1.5.1:
-  version "1.7.0"
-  resolved "https://registry.yarnpkg.com/domutils/-/domutils-1.7.0.tgz#56ea341e834e06e6748af7a1cb25da67ea9f8c2a"
-  integrity sha512-Lgd2XcJ/NjEw+7tFvfKxOzCYKZsdct5lczQ2ZaQY8Djz7pfAD3Gbp8ySJWtreII/vDlMVmxwa6pHmdxIYgttDg==
-  dependencies:
-    dom-serializer "0"
-    domelementtype "1"
+    is-obj "^2.0.0"
 
 dynamic-dedupe@^0.3.0:
   version "0.3.0"
@@ -511,16 +486,6 @@ encodeurl@~1.0.2:
   resolved "https://registry.yarnpkg.com/encodeurl/-/encodeurl-1.0.2.tgz#ad3ff4c86ec2d029322f5a02c3a9a606c95b3f59"
   integrity sha1-rT/0yG7C0CkyL1oCw6mmBslbP1k=
 
-entities@^1.1.1, entities@~1.1.1:
-  version "1.1.2"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-1.1.2.tgz#bdfa735299664dfafd34529ed4f8522a275fea56"
-  integrity sha512-f2LZMYl1Fzu7YSBKg+RoROelpOaNrcGmE9AZubeDfrCEia483oW4MI4VyFd5VNHIgQ/7qm1I0wUHK1eJnn2y2w==
-
-entities@^2.0.0:
-  version "2.0.0"
-  resolved "https://registry.yarnpkg.com/entities/-/entities-2.0.0.tgz#68d6084cab1b079767540d80e56a39b423e4abf4"
-  integrity sha512-D9f7V0JSRwIxlRI2mjMqufDrRDnx8p+eEOz7aUM9SuvF8gsBzra0/6tbjl1m8eQHrZlYj6PxqE00hZ1SAIKPLw==
-
 error-ex@^1.2.0:
   version "1.3.2"
   resolved "https://registry.yarnpkg.com/error-ex/-/error-ex-1.3.2.tgz#b4ac40648107fdcdcfae242f428bea8a14d4f1bf"
@@ -533,11 +498,21 @@ escape-html@~1.0.3:
   resolved "https://registry.yarnpkg.com/escape-html/-/escape-html-1.0.3.tgz#0258eae4d3d0c0974de1c169188ef0051d1d1988"
   integrity sha1-Aljq5NPQwJdN4cFpGI7wBR0dGYg=
 
+escape-string-regexp@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/escape-string-regexp/-/escape-string-regexp-2.0.0.tgz#a30304e99daa32e23b2fd20f51babd07cffca344"
+  integrity sha512-UpzcLCXolUWcNu5HtVMHYdXJjArjsF9C0aNnquZYY4uW/Vu0miy5YoWvbV345HauVvcAUnpRuhMMcqTcGOY2+w==
+
 escaper@^2.5.3:
   version "2.5.3"
   resolved "https://registry.yarnpkg.com/escaper/-/escaper-2.5.3.tgz#8b8fe90ba364054151ab7eff18b4ce43b1e13ab5"
   integrity sha512-QGb9sFxBVpbzMggrKTX0ry1oiI4CSDAl9vIL702hzl1jGW8VZs7qfqTRX7WDOjoNDoEVGcEtu1ZOQgReSfT2kQ==
 
+esprima@^4.0.0:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/esprima/-/esprima-4.0.1.tgz#13b04cdb3e6c5d19df91ab6987a8695619b0aa71"
+  integrity sha512-eGuFFw7Upda+g4p+QHvnW0RyTX/SVeJBDM/gCtMARO0cLuT2HcEKnTPvhjV6aGeqrCB/sbNop0Kszm0jsaWU4A==
+
 esutils@^2.0.2:
   version "2.0.3"
   resolved "https://registry.yarnpkg.com/esutils/-/esutils-2.0.3.tgz#74d2eb4de0b8da1293711910d50775b9b710ef64"
@@ -584,6 +559,32 @@ express@^4.17.1:
     utils-merge "1.0.1"
     vary "~1.1.2"
 
+extend-shallow@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/extend-shallow/-/extend-shallow-2.0.1.tgz#51af7d614ad9a9f610ea1bafbb989d6b1c56890f"
+  integrity sha1-Ua99YUrZqfYQ6huvu5idaxxWiQ8=
+  dependencies:
+    is-extendable "^0.1.0"
+
+fast-glob@^3.2.2:
+  version "3.2.2"
+  resolved "https://registry.yarnpkg.com/fast-glob/-/fast-glob-3.2.2.tgz#ade1a9d91148965d4bf7c51f72e1ca662d32e63d"
+  integrity sha512-UDV82o4uQyljznxwMxyVRJgZZt3O5wENYojjzbaGEGZgeOxkLFf+V4cnUD+krzb2F72E18RhamkMZ7AdeggF7A==
+  dependencies:
+    "@nodelib/fs.stat" "^2.0.2"
+    "@nodelib/fs.walk" "^1.2.3"
+    glob-parent "^5.1.0"
+    merge2 "^1.3.0"
+    micromatch "^4.0.2"
+    picomatch "^2.2.1"
+
+fastq@^1.6.0:
+  version "1.6.0"
+  resolved "https://registry.yarnpkg.com/fastq/-/fastq-1.6.0.tgz#4ec8a38f4ac25f21492673adb7eae9cfef47d1c2"
+  integrity sha512-jmxqQ3Z/nXoeyDmWAzF9kH1aGZSis6e/SbfPmJpUnyZ0ogr6iscHQaml4wsEepEWSdtmpy+eVXmCRIMpxaXqOA==
+  dependencies:
+    reusify "^1.0.0"
+
 filewatcher@~3.0.0:
   version "3.0.1"
   resolved "https://registry.yarnpkg.com/filewatcher/-/filewatcher-3.0.1.tgz#f4a1957355ddaf443ccd78a895f3d55e23c8a034"
@@ -591,6 +592,13 @@ filewatcher@~3.0.0:
   dependencies:
     debounce "^1.0.0"
 
+fill-range@^7.0.1:
+  version "7.0.1"
+  resolved "https://registry.yarnpkg.com/fill-range/-/fill-range-7.0.1.tgz#1919a6a7c75fe38b2c7c77e5198535da9acdda40"
+  integrity sha512-qOo9F+dMUmC2Lcb4BbVvnKJxTPjCm+RRpe4gDuGrzkL7mEVl/djYSu2OdQ2Pa302N4oqkSg9ir6jaLWJ2USVpQ==
+  dependencies:
+    to-regex-range "^5.0.1"
+
 finalhandler@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/finalhandler/-/finalhandler-1.1.2.tgz#b7e7d000ffd11938d0fdb053506f6ebabe9f587d"
@@ -649,6 +657,13 @@ get-stdin@^4.0.1:
   resolved "https://registry.yarnpkg.com/get-stdin/-/get-stdin-4.0.1.tgz#b968c6b0a04384324902e8bf1a5df32579a450fe"
   integrity sha1-uWjGsKBDhDJJAui/Gl3zJXmkUP4=
 
+glob-parent@^5.1.0:
+  version "5.1.0"
+  resolved "https://registry.yarnpkg.com/glob-parent/-/glob-parent-5.1.0.tgz#5f4c1d1e748d30cd73ad2944b3577a81b081e8c2"
+  integrity sha512-qjtRgnIVmOfnKUE3NJAQEdk+lKrxfw8t5ke7SXtfMTHcjsBfOfWXCQfdb30zfDoZQ2IRSIiidmjtbHZPZ++Ihw==
+  dependencies:
+    is-glob "^4.0.1"
+
 glob@^7.1.3:
   version "7.1.6"
   resolved "https://registry.yarnpkg.com/glob/-/glob-7.1.6.tgz#141f33b81a7c2492e125594307480c46679278a6"
@@ -666,6 +681,16 @@ graceful-fs@^4.1.2:
   resolved "https://registry.yarnpkg.com/graceful-fs/-/graceful-fs-4.2.3.tgz#4a12ff1b60376ef09862c2093edd908328be8423"
   integrity sha512-a30VEBm4PEdx1dRB7MFK7BejejvCvBronbLjht+sHuGYj8PHs7M/5Z+rt5lw551vZ7yfTCj4Vuyy3mSJytDWRQ==
 
+gray-matter@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/gray-matter/-/gray-matter-4.0.2.tgz#9aa379e3acaf421193fce7d2a28cebd4518ac454"
+  integrity sha512-7hB/+LxrOjq/dd8APlK0r24uL/67w7SkYnfwhNFwg/VDIGWGmduTDYf3WNstLW2fbbmRwrDGCVSJ2isuf2+4Hw==
+  dependencies:
+    js-yaml "^3.11.0"
+    kind-of "^6.0.2"
+    section-matter "^1.0.0"
+    strip-bom-string "^1.0.0"
+
 growly@^1.3.0:
   version "1.3.0"
   resolved "https://registry.yarnpkg.com/growly/-/growly-1.3.0.tgz#f10748cbe76af964b7c96c93c6bcc28af120c081"
@@ -683,18 +708,6 @@ hosted-git-info@^2.1.4:
   resolved "https://registry.yarnpkg.com/hosted-git-info/-/hosted-git-info-2.8.7.tgz#4d2e0d5248e1cfabc984b0f6a6d75fe36e679511"
   integrity sha512-ChkjQtKJ3GI6SsI4O5jwr8q8EPrWCnxuc4Tbx+vRI5x6mDOpjKKltNo1lRlszw3xwgTOSns1ZRBiMmmwpcvLxg==
 
-htmlparser2@^3.9.1:
-  version "3.10.1"
-  resolved "https://registry.yarnpkg.com/htmlparser2/-/htmlparser2-3.10.1.tgz#bd679dc3f59897b6a34bb10749c855bb53a9392f"
-  integrity sha512-IgieNijUMbkDovyoKObU1DUhm1iwNYE/fuifEoEHfd1oZKZDaONBSkal7Y01shxsM49R4XaMdGez3WnF9UfiCQ==
-  dependencies:
-    domelementtype "^1.3.1"
-    domhandler "^2.3.0"
-    domutils "^1.5.1"
-    entities "^1.1.1"
-    inherits "^2.0.1"
-    readable-stream "^3.1.1"
-
 http-errors@1.7.2:
   version "1.7.2"
   resolved "https://registry.yarnpkg.com/http-errors/-/http-errors-1.7.2.tgz#4f5029cf13239f31036e5b2e55292bcfbcc85c8f"
@@ -724,6 +737,11 @@ iconv-lite@0.4.24:
   dependencies:
     safer-buffer ">= 2.1.2 < 3"
 
+immediate@~3.0.5:
+  version "3.0.6"
+  resolved "https://registry.yarnpkg.com/immediate/-/immediate-3.0.6.tgz#9db1dbd0faf8de6fbe0f5dd5e56bb606280de69b"
+  integrity sha1-nbHb0Pr43m++D13V5Wu2BigN5ps=
+
 indent-string@^2.1.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/indent-string/-/indent-string-2.1.0.tgz#8e2d48348742121b4a8218b7a137e9a52049dc80"
@@ -739,7 +757,7 @@ inflight@^1.0.4:
     once "^1.3.0"
     wrappy "1"
 
-inherits@2, inherits@2.0.4, inherits@^2.0.1, inherits@^2.0.3:
+inherits@2, inherits@2.0.4:
   version "2.0.4"
   resolved "https://registry.yarnpkg.com/inherits/-/inherits-2.0.4.tgz#0fa2c64f932917c3433a0ded55363aae37416b7c"
   integrity sha512-k/vGaX4/Yla3WzyMCvTQOXYeIHvqOKtnqBduzTHpzpQZzAskKMhZ2K+EnBiSM9zGSoIFeMpXKxa4dYeZIQqewQ==
@@ -772,6 +790,16 @@ is-expression@^3.0.0:
     acorn "~4.0.2"
     object-assign "^4.0.1"
 
+is-extendable@^0.1.0:
+  version "0.1.1"
+  resolved "https://registry.yarnpkg.com/is-extendable/-/is-extendable-0.1.1.tgz#62b110e289a471418e3ec36a617d472e301dfc89"
+  integrity sha1-YrEQ4omkcUGOPsNqYX1HLjAd/Ik=
+
+is-extglob@^2.1.1:
+  version "2.1.1"
+  resolved "https://registry.yarnpkg.com/is-extglob/-/is-extglob-2.1.1.tgz#a88c02535791f02ed37c76a1b9ea9773c833f8c2"
+  integrity sha1-qIwCU1eR8C7TfHahueqXc8gz+MI=
+
 is-finite@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/is-finite/-/is-finite-1.1.0.tgz#904135c77fb42c0641d6aa1bcdbc4daa8da082f3"
@@ -782,6 +810,23 @@ is-fullwidth-code-point@^2.0.0:
   resolved "https://registry.yarnpkg.com/is-fullwidth-code-point/-/is-fullwidth-code-point-2.0.0.tgz#a3b30a5c4f199183167aaab93beefae3ddfb654f"
   integrity sha1-o7MKXE8ZkYMWeqq5O+764937ZU8=
 
+is-glob@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/is-glob/-/is-glob-4.0.1.tgz#7567dbe9f2f5e2467bc77ab83c4a29482407a5dc"
+  integrity sha512-5G0tKtBTFImOqDnLB2hG6Bp2qcKEFduo4tZu9MT/H6NQv/ghhy30o55ufafxJ/LdH79LLs2Kfrn85TLKyA7BUg==
+  dependencies:
+    is-extglob "^2.1.1"
+
+is-number@^7.0.0:
+  version "7.0.0"
+  resolved "https://registry.yarnpkg.com/is-number/-/is-number-7.0.0.tgz#7535345b896734d5f80c4d06c50955527a14f12b"
+  integrity sha512-41Cifkg6e8TylSpdtTpeLVMqvSBEVzTttHvERD741+pnZ8ANv0004MRL43QKPDlK9cGvNp6NZWZUBlbGXYxxng==
+
+is-obj@^2.0.0:
+  version "2.0.0"
+  resolved "https://registry.yarnpkg.com/is-obj/-/is-obj-2.0.0.tgz#473fb05d973705e3fd9620545018ca8e22ef4982"
+  integrity sha512-drqDG3cbczxxEJRoOXcOjtdp1J/lyp1mNn0xaznRs8+muBhgQcrnbspox5X5fOw0HnMnbfDzvnEMEtqDEJEo8w==
+
 is-promise@^2.0.0:
   version "2.1.0"
   resolved "https://registry.yarnpkg.com/is-promise/-/is-promise-2.1.0.tgz#79a2a9ece7f096e80f36d2b2f3bc16c1ff4bf3fa"
@@ -819,6 +864,14 @@ js-stringify@^1.0.1:
   resolved "https://registry.yarnpkg.com/js-stringify/-/js-stringify-1.0.2.tgz#1736fddfd9724f28a3682adc6230ae7e4e9679db"
   integrity sha1-Fzb939lyTyijaCrcYjCufk6Weds=
 
+js-yaml@^3.11.0:
+  version "3.13.1"
+  resolved "https://registry.yarnpkg.com/js-yaml/-/js-yaml-3.13.1.tgz#aff151b30bfdfa8e49e05da22e7415e9dfa37847"
+  integrity sha512-YfbcO7jXDdyj0DGxYVSlSeQNHbD7XPWvrVWeVUujrQEoZzWJIRrCPoyk6kL6IAjAG2IolMK4T0hNUe0HOUs5Jw==
+  dependencies:
+    argparse "^1.0.7"
+    esprima "^4.0.0"
+
 jstransformer@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/jstransformer/-/jstransformer-1.0.0.tgz#ed8bf0921e2f3f1ed4d5c1a44f68709ed24722c3"
@@ -834,11 +887,23 @@ kind-of@^3.0.2:
   dependencies:
     is-buffer "^1.1.5"
 
+kind-of@^6.0.0, kind-of@^6.0.2:
+  version "6.0.3"
+  resolved "https://registry.yarnpkg.com/kind-of/-/kind-of-6.0.3.tgz#07c05034a6c349fa06e24fa35aa76db4580ce4dd"
+  integrity sha512-dcS1ul+9tmeD95T+x28/ehLgd9mENa3LsvDTtzm3vyBEO7RPptvAD+t44WVXaUjTBRcrpFeFlC8WCruUR456hw==
+
 lazy-cache@^1.0.3:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/lazy-cache/-/lazy-cache-1.0.4.tgz#a1d78fc3a50474cb80845d3b3b6e1da49a446e8e"
   integrity sha1-odePw6UEdMuAhF07O24dpJpEbo4=
 
+lie@3.1.1:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/lie/-/lie-3.1.1.tgz#9a436b2cc7746ca59de7a41fa469b3efb76bd87e"
+  integrity sha1-mkNrLMd0bKWd56QfpGmz77dr2H4=
+  dependencies:
+    immediate "~3.0.5"
+
 load-json-file@^1.0.0:
   version "1.1.0"
   resolved "https://registry.yarnpkg.com/load-json-file/-/load-json-file-1.1.0.tgz#956905708d58b4bab4c2261b04f59f31c99374c0"
@@ -850,6 +915,13 @@ load-json-file@^1.0.0:
     pinkie-promise "^2.0.0"
     strip-bom "^2.0.0"
 
+localforage@^1.3.0:
+  version "1.7.3"
+  resolved "https://registry.yarnpkg.com/localforage/-/localforage-1.7.3.tgz#0082b3ca9734679e1bd534995bdd3b24cf10f204"
+  integrity sha512-1TulyYfc4udS7ECSBT2vwJksWbkwwTX8BzeUIiq8Y07Riy7bDAAnxDaPU/tWyOVmQAcWJIEIFP9lPfBGqVoPgQ==
+  dependencies:
+    lie "3.1.1"
+
 locate-path@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/locate-path/-/locate-path-3.0.0.tgz#dbec3b3ab759758071b58fe59fc41871af21400e"
@@ -858,7 +930,7 @@ locate-path@^3.0.0:
     p-locate "^3.0.0"
     path-exists "^3.0.0"
 
-lodash@^4.15.0, lodash@^4.17.4:
+lodash@^4.17.4:
   version "4.17.15"
   resolved "https://registry.yarnpkg.com/lodash/-/lodash-4.17.15.tgz#b447f6670a0455bbfeedd11392eff330ea097548"
   integrity sha512-8xOcRHvCjnocdS5cpwXQXVzmmh5e5+saE2QGoeQmbKmRS6J3VQppPOIt0MnmE+4xlZoumy0GPG0D0MVIQbNA1A==
@@ -912,11 +984,24 @@ merge-descriptors@1.0.1:
   resolved "https://registry.yarnpkg.com/merge-descriptors/-/merge-descriptors-1.0.1.tgz#b00aaa556dd8b44568150ec9d1b953f3f90cbb61"
   integrity sha1-sAqqVW3YtEVoFQ7J0blT8/kMu2E=
 
+merge2@^1.3.0:
+  version "1.3.0"
+  resolved "https://registry.yarnpkg.com/merge2/-/merge2-1.3.0.tgz#5b366ee83b2f1582c48f87e47cf1a9352103ca81"
+  integrity sha512-2j4DAdlBOkiSZIsaXk4mTE3sRS02yBHAtfy127xRV3bQUFqXkjHCHLW6Scv7DwNRbIWNHH8zpnz9zMaKXIdvYw==
+
 methods@~1.1.2:
   version "1.1.2"
   resolved "https://registry.yarnpkg.com/methods/-/methods-1.1.2.tgz#5529a4d67654134edcc5266656835b0f851afcee"
   integrity sha1-VSmk1nZUE07cxSZmVoNbD4Ua/O4=
 
+micromatch@^4.0.2:
+  version "4.0.2"
+  resolved "https://registry.yarnpkg.com/micromatch/-/micromatch-4.0.2.tgz#4fcb0999bf9fbc2fcbdd212f6d629b9a56c39259"
+  integrity sha512-y7FpHSbMUMoyPbYUSzO6PaZ6FyRnQOpHuKwbo1G+Knck95XVU4QAiKdGEnj5wwoS7PlOgthX/09u5iFJ+aYf5Q==
+  dependencies:
+    braces "^3.0.1"
+    picomatch "^2.0.5"
+
 mime-db@1.43.0:
   version "1.43.0"
   resolved "https://registry.yarnpkg.com/mime-db/-/mime-db-1.43.0.tgz#0a12e0502650e473d735535050e7c8f4eb4fae58"
@@ -951,7 +1036,7 @@ minimist@^1.1.3:
   resolved "https://registry.yarnpkg.com/minimist/-/minimist-1.2.0.tgz#a35008b20f41383eec1fb914f4cd5df79a264284"
   integrity sha1-o1AIsg9BOD7sH7kU9M1d95omQoQ=
 
-mkdirp@^0.5.1:
+mkdirp@^0.5.1, mkdirp@~0.5.1:
   version "0.5.1"
   resolved "https://registry.yarnpkg.com/mkdirp/-/mkdirp-0.5.1.tgz#30057438eac6cf7f8c4767f38648d6697d75c903"
   integrity sha1-MAV0OOrGz3+MR2fzhkjWaX11yQM=
@@ -968,6 +1053,24 @@ ms@2.1.1:
   resolved "https://registry.yarnpkg.com/ms/-/ms-2.1.1.tgz#30a5864eb3ebb0a66f2ebe6d727af06a09d86e0a"
   integrity sha512-tgp+dl5cGk28utYktBsrFqA7HKgrhgPsg6Z/EfhWI4gl1Hwq8B/GmY/0oXZ6nF8hDVesS/FpnYaD/kOWhYQvyg==
 
+nedb-promises@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/nedb-promises/-/nedb-promises-4.0.1.tgz#4d0bd1553d045acca5d6713ad76eb97aa830b390"
+  integrity sha512-I6nVZ0zjjYGfja2UU8lDSEzjfQTS8bo+8jvn7apILpynYDKzLpl6YRfdPa+uRSUYDN9bH45wJ+gvRWcOjO2g5g==
+  dependencies:
+    nedb "^1.8.0"
+
+nedb@^1.8.0:
+  version "1.8.0"
+  resolved "https://registry.yarnpkg.com/nedb/-/nedb-1.8.0.tgz#0e3502cd82c004d5355a43c9e55577bd7bd91d88"
+  integrity sha1-DjUCzYLABNU1WkPJ5VV3vXvZHYg=
+  dependencies:
+    async "0.2.10"
+    binary-search-tree "0.2.5"
+    localforage "^1.3.0"
+    mkdirp "~0.5.1"
+    underscore "~1.4.4"
+
 negotiator@0.6.2:
   version "0.6.2"
   resolved "https://registry.yarnpkg.com/negotiator/-/negotiator-0.6.2.tgz#feacf7ccf525a77ae9634436a64883ffeca346fb"
@@ -994,13 +1097,6 @@ normalize-package-data@^2.3.2, normalize-package-data@^2.3.4:
     semver "2 || 3 || 4 || 5"
     validate-npm-package-license "^3.0.1"
 
-nth-check@~1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/nth-check/-/nth-check-1.0.2.tgz#b2bd295c37e3dd58a3bf0700376663ba4d9cf05c"
-  integrity sha512-WeBOdju8SnzPN5vTUJYxYUxLeXpCaVP5i5e0LF8fg7WORF2Wd7wFX/pk0tYZk7s8T+J7VLy0Da6J1+wCT0AtHg==
-  dependencies:
-    boolbase "~1.0.0"
-
 object-assign@^4, object-assign@^4.0.1, object-assign@^4.1.0:
   version "4.1.1"
   resolved "https://registry.yarnpkg.com/object-assign/-/object-assign-4.1.1.tgz#2109adc7965887cfc05cbbd442cac8bfbb360863"
@@ -1046,13 +1142,6 @@ parse-json@^2.2.0:
   dependencies:
     error-ex "^1.2.0"
 
-parse5@^3.0.1:
-  version "3.0.3"
-  resolved "https://registry.yarnpkg.com/parse5/-/parse5-3.0.3.tgz#042f792ffdd36851551cf4e9e066b3874ab45b5c"
-  integrity sha512-rgO9Zg5LLLkfJF9E6CCmXlSE4UVceloys8JrFqCcHloC3usd/kJCyPDwH2SOlzix2j3xaP9sUX3e8+kvkuleAA==
-  dependencies:
-    "@types/node" "*"
-
 parseurl@~1.3.3:
   version "1.3.3"
   resolved "https://registry.yarnpkg.com/parseurl/-/parseurl-1.3.3.tgz#9da19e7bee8d12dff0513ed5b76957793bc2e8d4"
@@ -1094,6 +1183,11 @@ path-type@^1.0.0:
     pify "^2.0.0"
     pinkie-promise "^2.0.0"
 
+picomatch@^2.0.5, picomatch@^2.2.1:
+  version "2.2.1"
+  resolved "https://registry.yarnpkg.com/picomatch/-/picomatch-2.2.1.tgz#21bac888b6ed8601f831ce7816e335bc779f0a4a"
+  integrity sha512-ISBaA8xQNmwELC7eOjqFKMESB2VIqt4PPDD0nsS95b/9dZXvVKOlz9keMSnoGGKcOHXfTvDD6WMaRoSc9UuhRA==
+
 pify@^2.0.0:
   version "2.3.0"
   resolved "https://registry.yarnpkg.com/pify/-/pify-2.3.0.tgz#ed141a6ac043a849ea588498e7dca8b15330e90c"
@@ -1268,15 +1362,6 @@ read-pkg@^1.0.0:
     normalize-package-data "^2.3.2"
     path-type "^1.0.0"
 
-readable-stream@^3.1.1:
-  version "3.6.0"
-  resolved "https://registry.yarnpkg.com/readable-stream/-/readable-stream-3.6.0.tgz#337bbda3adc0706bd3e024426a286d4b4b2c9198"
-  integrity sha512-BViHy7LKeTz4oNnkcLJ+lVSL6vpiFeX6/d3oSH8zCW7UxP2onchk+vTGB143xuFjHS3deTgkKoXXymXqymiIdA==
-  dependencies:
-    inherits "^2.0.3"
-    string_decoder "^1.1.1"
-    util-deprecate "^1.0.1"
-
 redent@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/redent/-/redent-1.0.0.tgz#cf916ab1fd5f1f16dfb20822dd6ec7f730c2afde"
@@ -1319,6 +1404,11 @@ resolve@^1.0.0, resolve@^1.1.6, resolve@^1.10.0:
   dependencies:
     path-parse "^1.0.6"
 
+reusify@^1.0.0:
+  version "1.0.4"
+  resolved "https://registry.yarnpkg.com/reusify/-/reusify-1.0.4.tgz#90da382b1e126efc02146e90845a88db12925d76"
+  integrity sha512-U9nH88a3fc/ekCF1l0/UP1IosiuIjyTh7hBvXVMHYgVcfGvt897Xguj2UOLDeI5BG2m7/uwyaLVT6fbtCwTyzw==
+
 right-align@^0.1.1:
   version "0.1.3"
   resolved "https://registry.yarnpkg.com/right-align/-/right-align-0.1.3.tgz#61339b722fe6a3515689210d24e14c96148613ef"
@@ -1333,16 +1423,16 @@ rimraf@^2.6.1:
   dependencies:
     glob "^7.1.3"
 
+run-parallel@^1.1.9:
+  version "1.1.9"
+  resolved "https://registry.yarnpkg.com/run-parallel/-/run-parallel-1.1.9.tgz#c9dd3a7cf9f4b2c4b6244e173a6ed866e61dd679"
+  integrity sha512-DEqnSRTDw/Tc3FXf49zedI638Z9onwUotBMiUFKmrO2sdFKIbXamXGQ3Axd4qgphxKB4kw/qP1w5kTxnfU1B9Q==
+
 safe-buffer@5.1.2:
   version "5.1.2"
   resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.1.2.tgz#991ec69d296e0313747d59bdfd2b745c35f8828d"
   integrity sha512-Gd2UZBJDkXlY7GbJxfsE8/nvKkUEU1G38c1siN6QP6a9PT9MmHB8GnpscSmMJSoF8LOIrt8ud/wPtojys4G6+g==
 
-safe-buffer@~5.2.0:
-  version "5.2.0"
-  resolved "https://registry.yarnpkg.com/safe-buffer/-/safe-buffer-5.2.0.tgz#b74daec49b1148f88c64b68d49b1e815c1f2f519"
-  integrity sha512-fZEwUGbVl7kouZs1jCdMLdt95hdIv0ZeHg6L7qPeciMZhZ+/gdesW4wgTARkrFWEpspjEATAzUGPG8N2jJiwbg==
-
 "safer-buffer@>= 2.1.2 < 3":
   version "2.1.2"
   resolved "https://registry.yarnpkg.com/safer-buffer/-/safer-buffer-2.1.2.tgz#44fa161b0187b9549dd84bb91802f9bd8385cd6a"
@@ -1357,6 +1447,14 @@ scope-css@^1.2.1:
     slugify "^1.3.1"
     strip-css-comments "^3.0.0"
 
+section-matter@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/section-matter/-/section-matter-1.0.0.tgz#e9041953506780ec01d59f292a19c7b850b84167"
+  integrity sha512-vfD3pmTzGpufjScBh50YHKzEu2lxBWhVEHsNGoEXmCmn2hKGfeNLYMzCJpe8cD7gqX7TJluOVpBkAequ6dgMmA==
+  dependencies:
+    extend-shallow "^2.0.1"
+    kind-of "^6.0.0"
+
 "semver@2 || 3 || 4 || 5", semver@^5.5.0:
   version "5.7.1"
   resolved "https://registry.yarnpkg.com/semver/-/semver-5.7.1.tgz#a954f931aeba508d307bbf069eff0c01c96116f7"
@@ -1406,6 +1504,11 @@ shellwords@^0.1.1:
   resolved "https://registry.yarnpkg.com/shellwords/-/shellwords-0.1.1.tgz#d6b9181c1a48d397324c84871efbcfc73fc0654b"
   integrity sha512-vFwSUfQvqybiICwZY5+DAWIPLKsWO31Q91JSKl3UYv+K5c2QRPzn0qzec6QPu1Qc9eHYItiP3NdJqNVqetYAww==
 
+shlex@^2.0.1:
+  version "2.0.1"
+  resolved "https://registry.yarnpkg.com/shlex/-/shlex-2.0.1.tgz#f3dfa388400604928fdc2d50388f421b8895ddf6"
+  integrity sha512-XrweL4ORG4Y9E9VvqsAjQ0Dhr4oW3BP6d4IceL7EnRA5Y7KU+4wCFg9HMhFm7SxhVswKu9emOvblBr7J17Vqtg==
+
 showdown@^1.9.1:
   version "1.9.1"
   resolved "https://registry.yarnpkg.com/showdown/-/showdown-1.9.1.tgz#134e148e75cd4623e09c21b0511977d79b5ad0ef"
@@ -1467,6 +1570,11 @@ spdx-license-ids@^3.0.0:
   resolved "https://registry.yarnpkg.com/spdx-license-ids/-/spdx-license-ids-3.0.5.tgz#3694b5804567a458d3c8045842a6358632f62654"
   integrity sha512-J+FWzZoynJEXGphVIS+XEh3kFSjZX/1i9gFBaWQcB+/tmpe2qUsSBABpcxqxnAxFdiUFEgAX1bjYGQvIZmoz9Q==
 
+sprintf-js@~1.0.2:
+  version "1.0.3"
+  resolved "https://registry.yarnpkg.com/sprintf-js/-/sprintf-js-1.0.3.tgz#04e6926f662895354f3dd015203633b857297e2c"
+  integrity sha1-BOaSb2YolTVPPdAVIDYzuFcpfiw=
+
 "statuses@>= 1.5.0 < 2", statuses@~1.5.0:
   version "1.5.0"
   resolved "https://registry.yarnpkg.com/statuses/-/statuses-1.5.0.tgz#161c7dac177659fd9811f43771fa99381478628c"
@@ -1481,13 +1589,6 @@ string-width@^3.0.0, string-width@^3.1.0:
     is-fullwidth-code-point "^2.0.0"
     strip-ansi "^5.1.0"
 
-string_decoder@^1.1.1:
-  version "1.3.0"
-  resolved "https://registry.yarnpkg.com/string_decoder/-/string_decoder-1.3.0.tgz#42f114594a46cf1a8e30b0a84f56c78c3edac21e"
-  integrity sha512-hkRX8U1WjJFd8LsDJ2yQ/wWWxaopEsABU1XfkM8A+j0+85JAGppt16cr1Whg6KIbb4okU6Mql6BOj+uup/wKeA==
-  dependencies:
-    safe-buffer "~5.2.0"
-
 strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   version "5.2.0"
   resolved "https://registry.yarnpkg.com/strip-ansi/-/strip-ansi-5.2.0.tgz#8c9a536feb6afc962bdfa5b104a5091c1ad9c0ae"
@@ -1495,6 +1596,11 @@ strip-ansi@^5.0.0, strip-ansi@^5.1.0, strip-ansi@^5.2.0:
   dependencies:
     ansi-regex "^4.1.0"
 
+strip-bom-string@^1.0.0:
+  version "1.0.0"
+  resolved "https://registry.yarnpkg.com/strip-bom-string/-/strip-bom-string-1.0.0.tgz#e5211e9224369fbb81d633a2f00044dc8cedad92"
+  integrity sha1-5SEekiQ2n7uB1jOi8ABE3IztrZI=
+
 strip-bom@^2.0.0:
   version "2.0.0"
   resolved "https://registry.yarnpkg.com/strip-bom/-/strip-bom-2.0.0.tgz#6219a85616520491f35788bdbf1447a99c7e6b0e"
@@ -1531,6 +1637,13 @@ to-fast-properties@^1.0.3:
   resolved "https://registry.yarnpkg.com/to-fast-properties/-/to-fast-properties-1.0.3.tgz#b83571fa4d8c25b82e231b06e3a3055de4ca1a47"
   integrity sha1-uDVx+k2MJbguIxsG46MFXeTKGkc=
 
+to-regex-range@^5.0.1:
+  version "5.0.1"
+  resolved "https://registry.yarnpkg.com/to-regex-range/-/to-regex-range-5.0.1.tgz#1648c44aae7c8d988a326018ed72f5b4dd0392e4"
+  integrity sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==
+  dependencies:
+    is-number "^7.0.0"
+
 toidentifier@1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/toidentifier/-/toidentifier-1.0.0.tgz#7e1be3470f1e77948bc43d94a3c8f4d7752ba553"
@@ -1618,16 +1731,16 @@ uglify-to-browserify@~1.0.0:
   resolved "https://registry.yarnpkg.com/uglify-to-browserify/-/uglify-to-browserify-1.0.2.tgz#6e0924d6bda6b5afe349e39a6d632850a0f882b7"
   integrity sha1-bgkk1r2mta/jSeOabWMoUKD4grc=
 
+underscore@~1.4.4:
+  version "1.4.4"
+  resolved "https://registry.yarnpkg.com/underscore/-/underscore-1.4.4.tgz#61a6a32010622afa07963bf325203cf12239d604"
+  integrity sha1-YaajIBBiKvoHljvzJSA88SI51gQ=
+
 unpipe@1.0.0, unpipe@~1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/unpipe/-/unpipe-1.0.0.tgz#b2bf4ee8514aae6165b4817829d21b2ef49904ec"
   integrity sha1-sr9O6FFKrmFltIF4KdIbLvSZBOw=
 
-util-deprecate@^1.0.1:
-  version "1.0.2"
-  resolved "https://registry.yarnpkg.com/util-deprecate/-/util-deprecate-1.0.2.tgz#450d4dc9fa70de732762fbd2d4a28981419a0ccf"
-  integrity sha1-RQ1Nyfpw3nMnYvvS1KKJgUGaDM8=
-
 utils-merge@1.0.1:
   version "1.0.1"
   resolved "https://registry.yarnpkg.com/utils-merge/-/utils-merge-1.0.1.tgz#9f95710f50a267947b2ccc124741c1028427e713"