bug #8928 How to use the route in xml (valterjrdev)

This PR was merged into the 4.0 branch.

Discussion
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How to use the route in xml

According to xsd "http://symfony.com/schema/routing/routing-1.0.xsd" the <controller> tag does not exist because it is an attribute. This way above is the correct way to use

Commits
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fcccd7a How to use the route in xml

Author: weaverryan

routing.rst

@@ -86,12 +86,12 @@ like ``/blog/my-post`` or ``/blog/all-about-symfony``:
             xsi:schemaLocation="http://symfony.com/schema/routing
                 http://symfony.com/schema/routing/routing-1.0.xsd">
 
-            <route id="blog_list" path="/blog">
-                <controller>App\Controller\BlogController::list</controller>
+            <route id="blog_list" controller="App\Controller\BlogController::list" path="/blog" >
+                <!-- settings -->
             </route>
 
-            <route id="blog_show" path="/blog/{slug}">
-                <controller>App\Controller\BlogController::show</controller>
+            <route id="blog_show" controller="App\Controller\BlogController::show" path="/blog/{slug}">
+                <!-- settings -->
             </route>
         </routes>