minor #5209 [Reference] Fix order of config blocks (xelaris)

This PR was merged into the 2.6 branch.

Discussion
----------

[Reference] Fix order of config blocks

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.6+
| Fixed tickets |

Commits
-------

4240b4b [Reference] Fix missing comma in constraint annotation
f33b10d [Reference] Fix order of config blocks

Author: wouterj

reference/constraints/Image.rst

@@ -159,17 +159,6 @@ following code:
 
 .. configuration-block::
 
-    .. code-block:: yaml
-
-        # src/Acme/BlogBundle/Resources/config/validation.yml
-        Acme\BlogBundle\Entity\Author
-            properties:
-                headshot:
-                    - Image:
-                        allowLandscape: false
-                        allowPortrait: false
-
-
     .. code-block:: php-annotations
 
         // src/Acme/BlogBundle/Entity/Author.php
@@ -181,13 +170,23 @@ following code:
         {
             /**
              * @Assert\Image(
-             *     allowLandscape = false
+             *     allowLandscape = false,
              *     allowPortrait = false
              * )
              */
             protected $headshot;
         }
 
+    .. code-block:: yaml
+
+        # src/Acme/BlogBundle/Resources/config/validation.yml
+        Acme\BlogBundle\Entity\Author
+            properties:
+                headshot:
+                    - Image:
+                        allowLandscape: false
+                        allowPortrait: false
+
     .. code-block:: xml
 
         <!-- src/Acme/BlogBundle/Resources/config/validation.xml -->