use same order for all configuration-blocks

ensure the following order of code-blocks in a .. configuration-block:: directive:
 - php-annotations
 - yaml
 - xml
 - php

Author: OskarStark

components/translation/usage.rst

@@ -67,16 +67,16 @@ is done just as before:
             </file>
         </xliff>
 
+    .. code-block:: yaml
+
+        'Hello %name%': Bonjour %name%
+
     .. code-block:: php
 
         return [
             'Hello %name%' => 'Bonjour %name%',
         ];
 
-    .. code-block:: yaml
-
-        'Hello %name%': Bonjour %name%
-
 .. note::
 
     The placeholders can take on any form as the full message is reconstructed

reference/constraints/Uuid.rst

@@ -25,14 +25,6 @@ Basic Usage
 
 .. configuration-block::
 
-    .. code-block:: yaml
-
-        # src/AppBundle/Resources/config/validation.yml
-        AppBundle\Entity\File:
-            properties:
-                identifier:
-                    - Uuid: ~
-
     .. code-block:: php-annotations
 
         // src/AppBundle/Entity/File.php
@@ -48,6 +40,14 @@ Basic Usage
              protected $identifier;
         }
 
+    .. code-block:: yaml
+
+        # src/AppBundle/Resources/config/validation.yml
+        AppBundle\Entity\File:
+            properties:
+                identifier:
+                    - Uuid: ~
+
     .. code-block:: xml
 
         <!-- src/AppBundle/Resources/config/validation.xml -->