Fix Sphinx link

Author: jonny-no1

book/forms.rst

@@ -668,7 +668,11 @@ the documentation for each type.
     :ref:`disable HTML5 validation <book-forms-html5-validation-disable>`
     or set the ``required`` option on your field to ``false``::
 
+<<<<<<< HEAD
         ->add('dueDate', DateType::class, array(
+=======
+        ->add('dueDate', 'date', array(
+>>>>>>> 47f358ec7f1b06bd5697f6bf325ad79bc91157b0
             'widget' => 'single_text',
             'required' => false
         ))