Fix / remove broken documentation links

docs/reference/jinja2.rst

@@ -101,7 +101,7 @@ Returns the Site object corresponding to the current request.
 
     {{ wagtail_site().site_name }}
 
-See :ref:`wagtile_site` for more information
+See :ref:`wagtail_site_tag` for more information
 
 ``wagtailuserbar()``
 ~~~~~~~~~~~~~~~~~~~~

docs/releases/1.10.rst

@@ -18,8 +18,6 @@ full-text search functionality. This means that if you use PostgreSQL to manage
 your database, you can now get a good quality search engine without needing
 to install Elasticsearch.
 
-To get started, see :ref:`postgres_search`.
-
 This feature was developed at the Arnhem sprint by Bertrand Bordage, Jaap Roes,
 Arne de Laat and Ramon de Jezus.
 

docs/releases/1.12.rst

@@ -74,7 +74,7 @@ The configuration settings ``WAGTAILEMBEDS_EMBED_FINDER`` and ``WAGTAILEMBEDS_EM
 Registering custom hallo.js plugins directly is deprecated
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The ability to enable / disable ``hallo.js`` plugins by calling ``registerHalloPlugin`` or modifying the ``halloPlugins`` list has been deprecated, and will be removed in Wagtail 1.14. The recommended way of customising the hallo.js editor is now through :ref:`rich text features <rich_text_features>`. For details of how to define a hallo.js plugin as a rich text feature, see :doc:`../extending/extending_hallo`.
+The ability to enable / disable ``hallo.js`` plugins by calling ``registerHalloPlugin`` or modifying the ``halloPlugins`` list has been deprecated, and will be removed in Wagtail 1.14. The recommended way of customising the hallo.js editor is now through :ref:`rich text features <rich_text_features>`.
 
 
 Custom ``get_admin_display_title`` methods should use ``draft_title``

docs/releases/2.0.rst

@@ -267,7 +267,7 @@ legacy versions of the API until everyone has migrated to an officially supporte
 ``construct_whitelister_element_rules`` hook is deprecated
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 
-The ``construct_whitelister_element_rules`` hook, used to specify additional HTML elements to be permitted in rich text, is deprecated. The recommended way of whitelisting elements is now to use rich text features - see :ref:`whitelisting_rich_text_elements`. For example, a whitelist rule that was previously defined as:
+The ``construct_whitelister_element_rules`` hook, used to specify additional HTML elements to be permitted in rich text, is deprecated. The recommended way of whitelisting elements is now to use rich text features. For example, a whitelist rule that was previously defined as:
 
 .. code-block:: python