diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,11 +1,15 @@
 # FastGithub
 github加速神器，解决github打不开、用户头像无法加载、releases无法上传下载、git-clone、git-pull、git-push失败等问题。
 
+### 0 写在前面
+* **fastgithub不具备“翻墙”功能,也没有相关的计划**
+* **fastgithub不支持Windows7等已被发行方停止支持的操作系统，并且也不会主动提供支持**
+* **fastgithub不能为您的游戏加速**
+* **fastgithub没有主动在github和fastgithub@qq.com之外的任何渠道发布**
+
 ### 1 程序下载
-* [github-release](https://github.com/dotnetcore/fastgithub/releases)
-* Q群1 [307306673](https://qm.qq.com/cgi-bin/qm/qr?k=cx_MgEIvoo1EMkrKg5tXz8vMdtPap3Rw&jump_from=webapi) [已满]
-* Q群2 [742376932](https://qm.qq.com/cgi-bin/qm/qr?k=6BBJ1nrJwe1o1E4-NJfwSOP-C4sMGc4q&jump_from=webapi)
-* Q群3 [597131950](https://jq.qq.com/?_wv=1027&k=1YpGW564)
+* [github-release下载](https://github.com/dotnetcore/fastgithub/releases)
+* 发送任意邮件到fastgithub@qq.com
   
 ### 2 部署方式
 #### 2.1 windows-x64桌面