minor #8154 Fix routing order formats (yceruto)

This PR was squashed before being merged into the 3.3 branch (closes #8154).

Discussion
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Fix routing order formats

http://symfony.com/doc/current/contributing/documentation/standards.html#formats:
> * Routing: Annotations, YAML, XML, PHP

Also, I've added `use` statement as `service` option belong to the `Route` annotation class of `FrameworkExtraBundle`.

Commits
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79b2254 Fix routing order formats

Author: xabbuh

controller/service.rst

@@ -24,17 +24,12 @@ syntax:
 
 .. configuration-block::
 
-    .. code-block:: yaml
-
-        # app/config/routing.yml
-        hello:
-            path:     /hello
-            defaults: { _controller: app.hello_controller:indexAction }
-
     .. code-block:: php-annotations
 
-        # src/AppBundle/Controller/HelloController.php
+        // src/AppBundle/Controller/HelloController.php
         // ...
+        
+        use Sensio\Bundle\FrameworkExtraBundle\Configuration\Route;
 
         /**
          * @Route(service="app.hello_controller")
@@ -44,6 +39,13 @@ syntax:
             // ...
         }
 
+    .. code-block:: yaml
+
+        # app/config/routing.yml
+        hello:
+            path:     /hello
+            defaults: { _controller: app.hello_controller:indexAction }
+
     .. code-block:: xml
 
         <!-- app/config/routing.xml -->