Syntax fix

Author: javiereguiluz

components/routing.rst

@@ -186,6 +186,7 @@ If the file is found, the loader returns a :class:`Symfony\\Component\\Routing\\
 If you're using the ``YamlFileLoader``, then route definitions look like this:
 
 .. code-block:: yaml
+
     # routes.yaml
     route1:
         path:       /foo
@@ -195,6 +196,7 @@ If you're using the ``YamlFileLoader``, then route definitions look like this:
         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::