Fixed the base class note in the Date Views docs.

docs/ref/class-based-views/generic-date-based.txt

@@ -612,7 +612,10 @@ DateDetailView
 
     All of the generic views listed above have matching ``Base`` views that
     only differ in that they do not include the
-    :class:`~django.views.generic.detail.SingleObjectTemplateResponseMixin`:
+    :class:`~django.views.generic.list.MultipleObjectTemplateResponseMixin`
+    (for the archive views) or
+    :class:`~django.views.generic.detail.SingleObjectTemplateResponseMixin`
+    (for the :class:`DateDetailView`):
 
     .. class:: BaseArchiveIndexView