Adding composer instructions

README.md

@@ -2,6 +2,12 @@
 
 This library provides a service that can be used to filter object values based on annotations
 
+## Installation
+
+### Composer
+
+    composer.phar require dms/dms-filter=~1.1
+
 ## Usage
 
 Your Entity:  
@@ -94,4 +100,4 @@ Feel free to send pull requests, just follow these guides:
 
 This library is inspired by the Symfony 2 Validator component and is meant to work alongside it. 
 
-Symfony 2 Validator: https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Validator
+Symfony 2 Validator: https://github.com/symfony/symfony/blob/master/src/Symfony/Component/Validator