Merge pull request #25 from arifszn/alias

Add usage guide of configuring shell alias

README.md

@@ -8,11 +8,8 @@
  <a href="https://www.npmjs.com/package/vail">
   <img src="https://img.shields.io/npm/v/vail"/>
  </a>
- <!--  <a href="https://www.npmjs.com/package/vail">
+ <a href="https://www.npmjs.com/package/vail">
   <img src="https://img.shields.io/npm/dt/vail"/>
- </a> -->
- <a href="https://github.com/arifszn/vail/actions/workflows/test.yml">
-  <img src="https://github.com/arifszn/vail/actions/workflows/test.yml/badge.svg"/>
  </a>
  <a href="https://github.com/arifszn/vail/issues">
   <img src="https://img.shields.io/github/issues/arifszn/vail"/>
@@ -109,6 +106,28 @@ Additionally, you can use Vail to run any command within the context of your app
 ./node_modules/.bin/vail exec app node --version
 ```
 
+### Configuring A Shell Alias
+
+Instead of repeatedly typing `./node_modules/.bin/vail` to execute Vail commands, you may wish to configure a shell alias that allows you to execute Vail's commands more easily:
+
+```sh
+alias vail='[ -f vail ] && sh vail || sh node_modules/.bin/vail'
+```
+
+To make sure this is always available, you may add this to your shell configuration file in your home directory, such as ~/.zshrc or ~/.bashrc, and then restart your shell.
+
+Once the shell alias has been configured, you may execute Vail commands by simply typing vail.
+
+```sh
+vail up
+```
+
+## Available Services
+
+Vail supports the following services:
+
+- MySQL
+
 ## Support
 
 <p>You can show your support by starring this project.</p>