Minor formatting changes

Author: javiereguiluz

form/multiple_buttons.rst

@@ -35,6 +35,8 @@ querying if the "Save and add" button was clicked::
 Or you can get the button's name by using the 
 :method:`Symfony\\Component\\Form\\Form::getClickedButton` method of the form::
     
-    if ($form->getClickedButton()->getName()==='saveAndAdd')    
+    if ('saveAndAdd' === $form->getClickedButton()->getName()) {
+        // ...
+    }