Update README.md

README.md

@@ -2,5 +2,15 @@
 All files from anonymous, No need for an Android emulator to decrypt alac
 
 
+### 安装
 推荐Windows Subsystem for Linux (WSL)使用
-usage: ./wrapper [port] ([username] [password])
+usage:  `./wrapper [port] ([username] [password])`
+
+```shell
+sudo -i
+wget "https://github.com/zhaarey/wrapper/releases/download/linux/wrapper.linux.x86_64.tar.gz"
+mkdir wrapper
+tar -xzf wrapper.linux.x86_64.tar.gz -C wrapper
+cd wrapper
+./wrapper
+```