Update README.md

Author: Unitech

README.md

@@ -1,14 +1,15 @@
 # Deploy system for PM2
 
-Documentation: <https://pm2.io/doc/en/runtime/guide/easy-deploy-with-ssh/>
+This is the module that allows to do `pm2 deploy`.
+Documentation: http://pm2.keymetrics.io/docs/usage/deployment/
 
 [![build status](https://badgen.net/travis/Unitech/pm2/master)](https://travis-ci.org/Unitech/pm2-deploy) [![npm package version](https://badgen.net/npm/v/pm2-deploy)](https://npm.im/pm2-deploy) [![install size](https://badgen.net/packagephobia/install/pm2-deploy)](https://packagephobia.now.sh/result?p=pm2-deploy) [![github license](https://badgen.net/github/license/Unitech/pm2-deploy)](https://github.com/Unitech/pm2-deploy/blob/master/LICENSE) [![js semistandard style](https://badgen.net/badge/code%20style/semistandard/pink)](https://github.com/Flet/semistandard)
 
 ## Instalation
 
     $ npm install pm2-deploy
 
-## Usage
+## Programmatic Usage
 
 ```js
 var deployForEnv = require('pm2-deploy').deployForEnv;