Minor fixes

Author: javiereguiluz

doctrine/registration_form.rst

@@ -96,7 +96,7 @@ The form class for the registration form will look something like this::
                         new Length([
                             'min' => 6,
                             'minMessage' => 'Your password should be at least {{ limit }} characters',
-                            'max' => 4096
+                            'max' => 4096,
                         ]),
                     ],
                 ])
@@ -170,7 +170,7 @@ saves the user::
 
                 // do anything else you need here, like send an email
 
-                return $this->redirect('app_homepage');
+                return $this->redirectToRoute('app_homepage');
             }
 
             return $this->render('registration/register.html.twig', [