clean/edit markdown

docs/howtostudykorean/unit-1/07-irregulars.md

@@ -8,7 +8,7 @@ A PDF file neatly presenting all of these words, example sentences and extra inf
 
 You can try to find all of the words from this lesson, and all of the words from every lesson in Unit 1 in a package of twenty five [Word Searches](https://www.howtostudykorean.com/wordsearch/).
 
-### Nouns:
+### Nouns
 
 눈썹 <AudioButton src="https://www.howtostudykorean.com/wp-content/uploads/2014/01/vLesson-7-1.mp3" /> = <span class="spoiler">eyebrow</span>
 
@@ -291,7 +291,7 @@ Example:
 
 </Details>
 
-### Verbs:
+### Verbs
 
 찾다 <AudioButton src="https://www.howtostudykorean.com/wp-content/uploads/2014/01/vLesson-7-13.mp3" /> = <span class="md spoiler">to search for, find</span>
 
@@ -515,7 +515,7 @@ Example:
 
 </Details>
 
-### Adjectives:
+### Adjectives
 
 쉽다 <AudioButton src="https://www.howtostudykorean.com/wp-content/uploads/2014/01/vLesson-7-22.mp3" /> = <span class="md spoiler">to be easy</span>
 
@@ -804,7 +804,7 @@ Example:
 
 </Details>
 
-### Adverbs:
+### Adverbs
 
 일찍 <AudioButton src="https://www.howtostudykorean.com/wp-content/uploads/2014/01/vLesson-7-38.mp3" /> = <span class="md spoiler">early</span>
 
@@ -889,7 +889,7 @@ As I mentioned previously, most of these irregulars are applied when adding a vo
 
 As such, this lesson will present the Korean irregulars and how they change as a result of adding these conjugations. In later lessons when you learn about other additions, you can apply what you learned in this lesson to those concepts. For now, let’s get started.
 
-## ㅅ Irregular
+### ㅅ Irregular
 
 If the last letter of a word stem ends in ㅅ (for example: 짓다 = to build), the ㅅ gets removed when adding a vowel. For example, when conjugating:
 
@@ -934,7 +934,7 @@ Here is a table with the word “짓다 (to build)” being conjugated using all
 
 _Note that when a word stem has_ ㅅ _as the fourth consonant,_ _this irregular does not_ _apply. For example, this does not apply to_ 없다*, which you will learn about in the next lesson.*
 
-## ㄷ irregular
+### ㄷ irregular
 
 If the last letter of a word stem ends in ㄷ (for example: 걷다 = to walk), the ㄷ gets changed to ㄹ when adding a vowel. This is only done with verbs. For example:
 
@@ -980,7 +980,7 @@ Here is a table with the word “걷다 (to walk)” being conjugated using all
 | Plain form    | **걸었다**     | 걷는다     | 걷겠다     |
 | Formal high   | **걸었습니다** | 걷습니다   | 걷겠습니다 |
 
-## ㅂ Irregular
+### ㅂ Irregular
 
 If the last letter of a word stem ends in ㅂ (쉽다 = easy), the ㅂ changes to 우 when adding a vowel. 우 then gets added to the next syllable in the conjugated word.
 
@@ -1062,7 +1062,7 @@ Here is a table with the word “춥다 (cold)” being conjugated using all the
 | Formal high    | **추웠습니다**               | 춥습니다   | 춥겠습니다 |
 | Adjective form | **추운** 날씨 = cold weather |
 
-## ㅡ Irregular
+### ㅡ Irregular
 
 If the final letter in a stem is ㅡ (for example: 잠그다 = to lock), when adding ~아/어, you can not determine whether you need to add ~어 or ~아 to the stem by looking at ㅡ. Instead, you must look at the vowel in the second last syllable. For example, in the word 잠그다, the second last syllable in the stem is 잠, and the vowel here is ㅏ. We use the same rules as above to determine whether 아 or 어 is added. If the vowel in the second last syllable is ㅏ or ㅗ, 아 is added. If the vowel in the second last syllable is anything other than ㅏ or ㅗ, 어 is added. For example:
 
@@ -1166,7 +1166,7 @@ Finally, here is a table with the word “만들다 (to make – which is a verb
 
 _You will learn how_ 만든다 _and_ 만듭니다 _are formed later in the lesson when you learn about the_ ㄹ _irregular._
 
-## 르 Irregular
+### 르 Irregular
 
 If the final syllable in a stem is 르 (마르다), it is conjugated differently when adding ~아/어. This irregular only applies when adding ~아/어(or any of its derivatives) to a stem and not when adding any other grammatical principles that starts with a vowel or consonant. Up until now, you haven’t learned about any of these other grammatical principles, that can start with anything other than ~아/어~, so don’t worry about this distinction too much.
 
@@ -1203,7 +1203,7 @@ And here is a table with the word “마르다 (thin – which is an adjective)
 | Formal high    | **말랐습니다**        | 마릅니다   | 마르겠습니다 |
 | Adjective form | 마른 여자 = thin girl |
 
-## ㄹ Irregular
+### ㄹ Irregular
 
 Okay, last one, I promise.