minor #17820 [Form] Remove mentions of renderForm() (nicolas-grekas)

This PR was merged into the 6.2 branch.

Discussion
----------

[Form] Remove mentions of renderForm()

Related to #16942

Commits
-------

e7c3639 Remove mentions of renderForm()

Author: javiereguiluz

controller/upload_file.rst

@@ -170,7 +170,7 @@ Finally, you need to update the code of the controller that handles the form::
                 return $this->redirectToRoute('app_product_list');
             }
 
-            return $this->renderForm('product/new.html.twig', [
+            return $this->render('product/new.html.twig', [
                 'form' => $form,
             ]);
         }

form/direct_submit.rst

@@ -29,7 +29,7 @@ control over when exactly your form is submitted and what data is passed to it::
             }
         }
 
-        return $this->renderForm('task/new.html.twig', [
+        return $this->render('task/new.html.twig', [
             'form' => $form,
         ]);
     }

form/dynamic_form_modification.rst

@@ -534,7 +534,7 @@ your application. Assume that you have a sport meetup creation controller::
                 // ... save the meetup, redirect etc.
             }
 
-            return $this->renderForm('meetup/create.html.twig', [
+            return $this->render('meetup/create.html.twig', [
                 'form' => $form,
             ]);
         }

form/form_collections.rst

@@ -164,7 +164,7 @@ In your controller, you'll create a new form from the ``TaskType``::
                 // ... do your form processing, like saving the Task and Tag entities
             }
 
-            return $this->renderForm('task/new.html.twig', [
+            return $this->render('task/new.html.twig', [
                 'form' => $form,
             ]);
         }