Added a pagination example to ListView docs.

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

@@ -115,6 +115,7 @@ many projects they are typically the most commonly used views.
         class ArticleListView(ListView):
 
             model = Article
+            paginate_by = 100  # if pagination is desired
 
             def get_context_data(self, **kwargs):
                 context = super().get_context_data(**kwargs)
@@ -144,6 +145,10 @@ many projects they are typically the most commonly used views.
         {% endfor %}
         </ul>
 
+    If you're using pagination, you can adapt the :ref:`example template from
+    the pagination docs <using-paginator-in-view>`. Change instances of
+    ``contacts`` in that example template to ``page_obj``.
+
 .. class:: django.views.generic.list.BaseListView
 
     A base view for displaying a list of objects. It is not intended to be used