Merge pull request #488 from JellyBellyDev/master

Update README.md

README.md

@@ -150,6 +150,7 @@ class MyController extends Controller
         $imagemanagerResponse = $this->container
             ->get('liip_imagine.controller')
                 ->filterAction(
+                    $this->request          // http request
                     'uploads/foo.jpg',      // original image you want to apply a filter to
                     'my_thumb'              // filter defined in config.yml
         );
@@ -165,6 +166,14 @@ class MyController extends Controller
 
 In case you need to add more logic the recommended solution is to either extend `ImagineController.php` controller or take the code from that controller as a basis for your own controller.
 
+If you want to use the service in another service, you have to simulate a new request:
+
+``` php
+$imagemanagerResponse = $this->container
+    ->get('liip_imagine.controller')
+        ->filterAction($this->container->get('request'), 'uploads/foo.jpg', 'my_thumb');
+```
+
 ## Outside the web root
 
 When your setup requires your source images to live outside the web root, or if that's just the way you roll,