Add documentation for the ajax_template attribute

CONTRIBUTORS.rst

@@ -17,6 +17,7 @@ Core team
 * Codie Roelf (Praekelt)
 * Lisa Adams (Praekelt)
 * Naomi Morduch Toubman
+* Kalob Taulien
 
 Contributors
 ============

docs/topics/pages.rst

@@ -324,6 +324,20 @@ The template can be changed on a per-instance basis by defining a ``get_template
 In this example, pages that have the ``use_other_template`` boolean field set will use the ``blog/other_blog_page.html`` template. All other pages will use the default ``blog/blog_page.html``.
 
 
+Ajax Templates
+~~~~~~~~~~~~~~
+
+If you want to add AJAX functionality to a page, such as a paginated listing that updates in-place on the page rather than triggering a full page reload, you can set the ``ajax_template`` attribute to specify an alternative template to be used when the page is requested via an AJAX call (as indicated by the ``X-Requested-With: XMLHttpRequest`` HTTP header):
+
+.. code-block:: python
+
+    class BlogPage(Page):
+        ...
+
+        ajax_template = 'other_template_fragment.html'
+        template = 'other_template.html'
+
+
 More control over page rendering
 --------------------------------