Update Chinese language names in READMEs (#127)

Author: PeterDaveHello

README.ja.md

@@ -2,7 +2,7 @@
 
 > A code review robot powered by ChatGPT
 
-Translation Versions: [ENGLISH](./README.md) | [中文简体](./README.zh-CN.md) | [中文繁體](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
+Translation Versions: [ENGLISH](./README.md) | [简体中文](./README.zh-CN.md) | [繁體中文](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
 
 ## Usage
 

README.ko.md

@@ -2,7 +2,7 @@
 
 > cr bot은 ChatGPT를 활용한 코드리뷰 로봇입니다.
 
-Translation Versions: [ENGLISH](./README.md) | [中文简体](./README.zh-CN.md) | [中文繁體](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
+Translation Versions: [ENGLISH](./README.md) | [简体中文](./README.zh-CN.md) | [繁體中文](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
 
 ## 사용법
 

README.md

@@ -2,7 +2,7 @@
 
 > A code review robot powered by ChatGPT
 
-Translation Versions: [ENGLISH](./README.md) | [中文简体](./README.zh-CN.md) | [中文繁體](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
+Translation Versions: [ENGLISH](./README.md) | [简体中文](./README.zh-CN.md) | [繁體中文](./README.zh-TW.md) | [한국어](./README.ko.md) | [日本語](./README.ja.md)
 
 ## Bot Usage
 

README.zh-CN.md

@@ -6,7 +6,7 @@
 > 试试 https://github.com/nangongchengfeng/Chat-CodeReview.git
 
 
-翻译版本：[英语](./README.md)\|[中文简体](./README.zh-CN.md)\|[中文繁体](./README.zh-TW.md) \| [한국어](./README.ko.md) \| [日本語](./README.ja.md)
+翻译版本：[英语](./README.md)\|[简体中文](./README.zh-CN.md)\|[繁體中文](./README.zh-TW.md) \| [한국어](./README.ko.md) \| [日本語](./README.ja.md)
 
 ## 用法