add Contributing in readme file

Author: peng3307165

README.md

@@ -23,6 +23,7 @@ Codefuse-ModelCache
 - [Modules](#Modules)
 - [Core-Features](#Core-Features)
 - [Acknowledgements](#Acknowledgements)
+- [Contributing](#Contributing)
 ## news
 [2023.11.20] codefuse-ModelCache has integrated local storage, such as sqlite and faiss, providing users with the convenience of quickly initiating tests.
 [2023.08.26] codefuse-ModelCache...

README_CN.md

@@ -22,6 +22,8 @@ Codefuse-ModelCache
 - [文章](#文章)
 - [架构大图](#架构大图)
 - [核心功能](#核心功能)
+- [致谢](#致谢)
+- [Contributing](#Contributing)
 ## 新闻
 [2023.11.20] codefuse-ModelCache增加本地存储能力, 适配了嵌入式数据库sqlite、faiss，方便用户快速启动测试。
 [2023.10.31] codefuse-ModelCache...