Add v0.5.2.1 changelog in JP README.md (#105)

* Delete README.old.md

Deleted old version of README, there's already a new version

* Delete Readme.txt

This guide is outdated, there's README.md already

* Update README.md

Edited for grammar and added credits down below

* Update CLang_en.cs

Fixed grammar

* Update CLang_jp.cs

Fixed grammar

* Update README.md

Fix grammar on my side

* Update CLang_jp.cs

Fixed mistake on my side when fetching upstream

* Update README.md

* Update README.md

* Update README.md

Just a test commit

* Update CLang_jp.cs

stopping at 34, will do afterwards

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next 56

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removed unfinished 56

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Did until 99, continue on
this.iKeyAssignTaikoLRed = new CItemBase( "LeftRed",
				"左側の面へのキーの割り当てを設\n定します。",
				"Drums key assign:\nTo assign key/pads for LeftRed\n button.");
			this.list項目リスト.Add(this.iKeyAssignTaikoLRed);

line 931 of cactconfiglist.cs

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Finished 10000 to 10014, done. Will add dictionary later.

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until 40

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next start off from 74

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next is 91

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Finally done

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Changed

* Update README.md

Deleted the already done to do

* Update README.md

added tower floors crash faq

* Update CStage結果.cs

remove block of legacy code

* Update CSong管理.cs

Removed 2 old code

* Update README.md

Added @s for funnym0th and touhourenren

* Revert "Update CSong管理.cs"

This reverts commit d3db881b93.

didnt need edit

* Revert "Update CStage結果.cs"

This reverts commit 4a77eaa12c.

didnt need edit

* Update README.md

del touhourenren

* Update CLang_jp.cs

debug info

* Update README.md

Replaced Meowgister Youtube to Github following the format of other credits, and added Meowgister Twitter handle

* Create README-EN.md

Translation to English

* Update README.md

* Update README-EN.md

* Update README-EN.md

* Update CStrジャンルtoNum.cs

game variety to game music

* Update README.md

* Update CStrジャンルtoNum.cs

README.md

@@ -134,6 +134,19 @@ SlimDXを改めてダウンロードしてください：https://code.google.com
 
 ## 更新記録
 
+<details>
+	<summary>v0.5.2.1</summary>
+	
+	- バグ修正
+	
+	- オート用のAIレベルを追加
+	
+	- グローバルオフセットを追加
+	
+	- AUTO ROLLをロールスピードに置き換え
+
+</details>
+
 <details>
 	<summary>v0.5.2</summary>