docs: 📝 update readme

README.md

@@ -1,3 +1,40 @@
 # PVM - PHP version manager
 ![author](https://img.shields.io/badge/v1.0.0-white?label=PVM&labelColor=%2325c2a0&color=white) ![Stars](https://img.shields.io/github/stars/unreadcode/pvm.svg) ![Issues](https://img.shields.io/github/issues/unreadcode/pvm.svg)
 
+## Commands
+
+### list
+
+```shell
+pvm list # show all installed php version
+pvm list -a # show ali available php version
+pvm ls # list short name
+```
+
+### install
+
+```shell
+pvm install <version> # install php version
+pvm install 8.0 # install php v8.0
+pvm i 8.0 # install short name
+```
+
+### use
+
+```shell
+pvm use <versioin> # switch php version
+pvm use 8.0 # switch to php v8.0
+```
+
+### uninstall
+
+```shell
+pvm uninstall <versoin> # uninstall php version
+pvm uninstall 8.0 # uninstall php v8.0
+pvm uni 8.0 # uninstall short name
+```
+
+## LICENSE
+[MIT](https://opensource.org/licenses/MIT)
+
+Copyright (c) 2024, UnreadCode