update Readme

README.md

@@ -33,8 +33,6 @@
 `Fluwx` is good but not God. You'd better read [official documents](https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1) before
 integrating `Fluwx`. Then you'll understand how to generate Android signature, what's universal link for iOS, how to add URL schema for iOS and so on.
 
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-
 ## Install
 
 Add the following dependencies in your `pubspec.yaml` file:

README_CN.md

@@ -34,8 +34,7 @@
 `Fluwx` 可以做很多工作但不是所有. 在集成之前，最好读一下[官方文档](https://open.weixin.qq.com/cgi-bin/showdocument?action=dir_list&t=resource/res_list&verify=1).  
  然后你才知道怎么生成签名，怎么使用universal link以及怎么添加URL schema等.
 
-> [收费视频教程点这里](https://study.163.com/course/introduction.htm?share=2&shareId=480000001896427&courseId=1209174838&_trace_c_p_k2_=e72467dc0df540579287a8ea996344a4)
->
+
 ## 安装
 
 在`pubspec.yaml` 文件中添加`fluwx`依赖: