docs(readme): add CLIProxyAPI Linux installer instructions

- Updated `README.md` and `README_CN.md` with steps to install via the Linux installer.
- Acknowledged [brokechubb](https://github.com/brokechubb) for building the installer.

Author: luispater

README.md

@@ -68,6 +68,14 @@ brew install cliproxyapi
 brew services start cliproxyapi
 ```
 
+### Installation via CLIProxyAPI Linux Installer
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/brokechubb/cliproxyapi-installer/refs/heads/master/cliproxyapi-installer | bash
+```
+
+Thanks to [brokechubb](https://github.com/brokechubb) for building the Linux installer!
+
 ## Usage
 
 ### GUI Client & Official WebUI

README_CN.md

@@ -82,6 +82,14 @@ brew install cliproxyapi
 brew services start cliproxyapi
 ```
 
+### 通过 CLIProxyAPI Linux Installer 安装
+
+```bash
+curl -fsSL https://raw.githubusercontent.com/brokechubb/cliproxyapi-installer/refs/heads/master/cliproxyapi-installer | bash
+```
+
+感谢 [brokechubb](https://github.com/brokechubb) 构建了 Linux installer！
+
 ## 使用方法
 
 ### 图形客户端与官方 WebUI