Update README.md

Update readme

README.md

@@ -2,20 +2,35 @@
 
 The main purpose of this repo is to unify different stemming components based on its language.
 
+## Installation
+
+This package is distributed over the packagist service for composer. In order to use this package composer must be installed.
+
+```sh
+composer require nadar/stemming
+```
+
 ## Usage
 
 Using the stemmer for your desired language:
 
 ```php
 <?php
+include 'vendor/autoload.php';
 
-$stemmed =  \Nadar\Stemming\Stem::word('drinking', 'en');
+$stemmed = \Nadar\Stemming\Stem::word('drinking', 'en');
 
 echo $stemmed; // output: "drink"
 ```
 
 If your provided language could not be found, the original word will be returned.
 
+You can also stem a whole phares:
+
+```php
+echo \Nadar\Stemming\Stem::pharese('I am playing drums', 'en');
+```
+
 ## Librarys Used:
 
 + German Stemming: https://github.com/arisro/german-stemmer (Copyright (c) 2013 Aris Buzachis (buzachis.aris@gmail.com))
@@ -33,4 +48,4 @@ in order to psr2 fix your code run:
 
 ```php
 ./vendor/bin/php-cs-fixer fix src/
-```
+```