fix documentation build warnings

CHANGELOG.txt

@@ -7,7 +7,7 @@ Changelog
  * Added {% routablepageurl %} template tag (Tim Heap)
  * Added RoutablePageMixin (Tim Heap)
  * MenuItems can now have bundled JavaScript
- * Added a new hook for registering admin menu items
+ * Added the register_admin_menu_item hook for registering menu items at startup
  * Added version indicator to the admin interface
  * Renamed wagtailsearch.indexed to wagtailsearch.index
  * Fix: Page URL generation now returns correct URLs for sites that have the main 'serve' view rooted somewhere other than '/' (Nathan Brizendine)

docs/core_components/pages/editing_api.rst

@@ -1,7 +1,7 @@
 .. _editing-api:
 
 Displaying fields with the Editing API
-====================================
+======================================
 
 .. note::
     This documentation is currently being written.
@@ -388,6 +388,8 @@ For information on developing custom hallo.js plugins, see the project's page: h
 Edit Handler API
 ~~~~~~~~~~~~~~~~
 
+.. _admin_hooks:
+
 Admin Hooks
 -----------
 

docs/releases/0.6.rst

@@ -21,7 +21,7 @@ Minor features
  * A new template tag has been added for reversing URLs inside routable pages. See :ref:`routablepageurl_template_tag`.
  * RoutablePage can now be used as a mixin. See :class:`wagtail.contrib.wagtailroutablepage.models.RoutablePageMixin`.
  * MenuItems can now have bundled JavaScript
- * Added a new hook for registering admin menu items. See :ref:`register_admin_menu_item`
+ * Added the ``register_admin_menu_item`` hook for registering menu items at startup. See :ref:`admin_hooks`
  * Added a version indicator into the admin interface (hover over the wagtail to see it)