minor #1246 [doc] adding ->createView() in normal symfony controller (bdujon)

This PR was squashed before being merged into the 2.x branch.

Discussion
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[doc] adding ->createView() in normal symfony controller

Sorry if i did something wrong since it s my first PR there.

If you don't add ->createView() in the render you ll get an error Cannot assign Symfony\Component\Form\Form to property xxxComponent::$formView of type ?Symfony\Component\Form\FormView

Commits
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006e31b [doc] adding ->createView() in normal symfony controller

Author: weaverryan

src/LiveComponent/doc/index.rst

@@ -1482,7 +1482,7 @@ this, create your controller like normal, including the submit logic::
 
             return $this->render('post/edit.html.twig', [
                 'post' => $post,
-                'form' => $form,
+                'form' => $form, // use $form->createView() in Symfony <6.2
             ]);
         }
     }