Update HowToAddNewLanguage.md

Author: durswd

docs/HowToAddNewLanguage.md

@@ -1,28 +1,11 @@
 
 # How to add a new language
 
-Add your language key in ``` resources/languages/languages.txt ```
 For example, if you like to add simplified chinese
 
-```
-ja
-en
-zhcn
-```
-
-
 Copy ``` resources/languages/en ``` and rename a directory.
-The directory's name is as same as language key.
 In this case you rename it into ``` resources/languages/zhcn ```
 
-Add your language name in ``` Base.csv ```
-
-```
-Language_en,English
-Language_ja,日本語
-Language_zhcn,简体中文 <- new language
-```
-
 Change CharacterTable in ``` resources/languages/zhcn/Base.csv ```
 
 ```