docs: replace mirror IP with GitHub/GitCode URLs in install commands

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: vigo999

README.md

@@ -179,7 +179,11 @@ mscli
 ### 9.1 Install from script
 
 ```bash
-curl -fsSL http://47.115.175.134/mscli/install.sh | bash
+# GitHub
+curl -fsSL https://raw.githubusercontent.com/mindspore-lab/mindspore-cli/main/scripts/install.sh | bash
+
+# GitCode (中国用户)
+curl -fsSL https://gitcode.com/mindspore-lab/mindspore-cli/raw/main/scripts/install.sh | bash
 ```
 
 ### 9.2 Build from source

README_zh.md

@@ -179,7 +179,11 @@ mscli
 ### 9.1 脚本安装
 
 ```bash
-curl -fsSL http://47.115.175.134/mscli/install.sh | bash
+# GitCode（推荐）
+curl -fsSL https://gitcode.com/mindspore-lab/mindspore-cli/raw/main/scripts/install.sh | bash
+
+# GitHub
+curl -fsSL https://raw.githubusercontent.com/mindspore-lab/mindspore-cli/main/scripts/install.sh | bash
 ```
 
 ### 9.2 从源码构建