Fixed #21031 -- Updated schema migrations FAQ.

Thanks ramiro for the report.

docs/faq/models.txt

@@ -40,17 +40,13 @@ Yes. See :doc:`Integrating with a legacy database </howto/legacy-databases>`.
 If I make changes to a model, how do I update the database?
 -----------------------------------------------------------
 
+Take a look at Django's support for :mod:`schema migrations
+<django.db.migrations>`.
+
 If you don't mind clearing data, your project's ``manage.py`` utility has a
 :djadmin:`flush` option to reset the database to the state it was in
 immediately after :djadmin:`syncdb` was executed.
 
-If you do care about deleting data, you'll have to execute the ``ALTER TABLE``
-statements manually in your database.
-
-There are `external projects which handle schema updates
-<http://www.djangopackages.com/grids/g/database-migration/>`_, of which the current
-defacto standard is `south <http://south.aeracode.org/>`_.
-
 Do Django models support multiple-column primary keys?
 ------------------------------------------------------