Fixed #6265 -- Added an example of overriding a form field's default widget in the modelforms docs, based on patch from programmerq.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@7036 bcc190cf-cafb-0310-a4f2-bffc1f526a37

docs/modelforms.txt

@@ -311,3 +311,12 @@ field, you could do the following::
     ...
     ...     class Meta:
     ...         model = Article
+
+If you want to override a field's default widget, then specify the ``widget``
+parameter when declaring the form field::
+
+   >>> class ArticleForm(ModelForm):
+   ...     pub_date = DateField(widget=MyDateWidget())
+   ...
+   ...     class Meta:
+   ...         model = Article