Update README_CN.md

Author: SolarianZ

README_CN.md

@@ -31,9 +31,9 @@ Unity 2019.4或更新版本。
 
 # 安装
 
-[![openupm](https://img.shields.io/npm/v/com.greenbamboogames.playablegraphmonitor?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.cn/packages/com.greenbamboogames.playablegraphmonitor/) 
+[![openupm](https://img.shields.io/npm/v/com.greenbamboogames.playablegraphmonitor?label=openupm&registry_uri=https://package.openupm.com)](https://openupm.com/packages/com.greenbamboogames.playablegraphmonitor/) 
 
-从 [OpenUPM](https://openupm.cn/packages/com.greenbamboogames.playablegraphmonitor/) 免费安装
+从 [OpenUPM](https://openupm.com/packages/com.greenbamboogames.playablegraphmonitor/) 免费安装
 
 或者