Fixed #22253 -- Added django-i18n to the mailing lists docs.

Thanks bmispelon for the suggestion.

docs/internals/contributing/localizing.txt

@@ -18,7 +18,8 @@ If you find an incorrect translation or want to discuss specific translations,
 go to the `Django project page`_. If you would like to help out with
 translating or add a language that isn't yet translated, here's what to do:
 
-* Join the `Django i18n mailing list`_ and introduce yourself.
+* Join the :ref:`Django i18n mailing list <django-i18n-mailing-list>` and
+  introduce yourself.
 
 * Make sure you read the notes about :ref:`specialties-of-django-i18n`.
 
@@ -61,6 +62,5 @@ Django source tree, as for any code change:
   ``Translations``, and attach the patch to it.
 
 .. _Transifex: https://www.transifex.com/
-.. _Django i18n mailing list: https://groups.google.com/d/forum/django-i18n
 .. _Django project page: https://www.transifex.com/projects/p/django-core/
 .. _Transifex User Guide: http://support.transifex.com/

docs/internals/mailing-lists.txt

@@ -73,6 +73,22 @@ The discussion about the development of Django itself takes place here.
 .. _django-developers subscription email address: mailto:django-developers+subscribe@googlegroups.com
 .. _django-developers posting email: mailto:django-developers@googlegroups.com
 
+.. _django-i18n-mailing-list:
+
+``django-i18n``
+---------------
+
+This is the place to discuss the internationalization and localization of
+Django's components.
+
+* `django-i18n mailing archive`_
+* `django-i18n subscription email address`_
+* `django-i18n posting email`_
+
+.. _django-i18n mailing archive: https://groups.google.com/d/forum/django-i18n
+.. _django-i18n subscription email address: mailto:django-i18n+subscribe@googlegroups.com
+.. _django-i18n posting email: mailto:django-i18n@googlegroups.com
+
 .. _django-announce-mailing-list:
 
 ``django-announce``