convert ALL notes HTML to markdown

docs/.vitepress/theme/components/VocabQuiz.vue

@@ -61,9 +61,11 @@
         </summary>
         <SentenceAudio v-if="example" :v="example" lang="en" />
 
-        <blockquote v-if="notes.length" :class="$style.notes">
-          <div v-for="(n, i) in notes" :key="i" v-html="n"></div>
-        </blockquote>
+        <blockquote
+          v-if="notes.length"
+          :class="$style.notes"
+          v-html="markdownIt.render(notes.join('\n\n'))"
+        ></blockquote>
 
         <div>
           <button
@@ -462,7 +464,7 @@ async function onVContentSave() {
 }
 
 const markdownIt = new MarkdownIt({
-  html: false,
+  html: true,
   breaks: true,
   linkify: true,
   typographer: true,