Update README.md

Author: willhoffmann

README.md

@@ -1,5 +1,25 @@
 # Domus ERP for PHP
 
+[![GitHub license](https://img.shields.io/github/license/Naereen/StrapDown.js.svg)](https://github.com/Naereen/StrapDown.js/blob/master/LICENSE)
 [![Build Status](https://travis-ci.org/willhoffmann/domuserp-php.svg?branch=master)](https://travis-ci.org/willhoffmann/domuserp-php)
+[![Downloads](https://img.shields.io/packagist/dt/willhoffmann/domuserp-php.svg?style=flat-square)](https://packagist.org/packages/willhoffmann/domuserp-php)
 
- A PHP Library for Domus ERP API
+A PHP Library for Domus ERP API
+ 
+The purpose of this lib is to create an abstracted layer to facilitate the use of API in PHP projects.
+
+**Features:**
+
+* Compatible with the PSR-4 standard.
+* Friendly commands to query the API.
+
+## Installation
+
+The suggested installation method is via [composer](https://getcomposer.org/):
+
+```sh
+php composer require willhoffmann/domuserp-php
+```
+
+## Usage
+Check the [wiki](https://github.com/willhoffmann/domuserp-php/wiki) for detailed documentation.