minor #11089 Some route fixes left after #11085 (Jules Pietri)

This PR was merged into the 4.2 branch.

Discussion
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Some route fixes left after #11085

Round 2 :).

Commits
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802244d Some route fixes left after #11085

Author: javiereguiluz

components/routing.rst

@@ -277,12 +277,14 @@ If you're using the ``YamlFileLoader``, then route definitions look like this:
 
     # routes.yaml
     route1:
-        path:     /foo
-        defaults: { _controller: 'MyController::fooAction' }
+        path:       /foo
+        controller: MyController::fooAction
+        methods:    GET|HEAD
 
     route2:
-        path:     /foo/bar
-        defaults: { _controller: 'MyController::foobarAction' }
+        path:       /foo/bar
+        controller: FooBarInvokableController
+        methods:    PUT
 
 To load this file, you can use the following code. This assumes that your
 ``routes.yaml`` file is in the same directory as the below code::

routing/hostname_pattern.rst

@@ -381,8 +381,8 @@ You can also set the host option on imported routes:
 
     .. code-block:: php-annotations
 
-        // src/Controller/MainController.php
-        namespace Acme\HelloBundle\Controller;
+        // vendor/acme/acme-hello-bundle/src/Controller/MainController.php
+        namespace Acme\AcmeHelloBundle\Controller;
 
         use Symfony\Bundle\FrameworkBundle\Controller\AbstractController;
         use Symfony\Component\Routing\Annotation\Route;
@@ -417,10 +417,13 @@ You can also set the host option on imported routes:
     .. code-block:: php
 
         // config/routes.php
-        $routes = $loader->import("@AcmeHelloBundle/Resources/config/routing.php");
-        $routes->setHost('hello.example.com');
+        namespace Symfony\Component\Routing\Loader\Configurator;
 
-        return $routes;
+        return function (RoutingConfigurator $routes) {
+            $routes->import("@AcmeHelloBundle/Resources/config/routing.php")
+                ->host('hello.example.com')
+            ;
+        };
 
 The host ``hello.example.com`` will be set on each route loaded from the new
 routing resource.