doc: update docs/cs.md (#586)

* 新增了c#中的类（所有内容都是经过书籍，资料证实的）

* 新增了c#中的类部分模块，元组模块，集合模块 c6d9901d5e

index.html

@@ -1316,7 +1316,7 @@
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 <p>如果你有资源，可以很方便<a href="https://github.com/jaywcjlove/reference/issues/102#issue-1451649637">部署 web 版</a>，这非常简单，只需要克隆 <a href="https://github.com/jaywcjlove/reference/tree/gh-pages">gh-pages</a> 分支代码到你的静态服务就可以了，还可以使用 <a href="https://hub.docker.com/r/wcjiang/reference">docker</a> 快捷部署 web 版。</p>
 
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