Move settings upgrade to correct section

Signed-off-by: Michal Čihař <michal@cihar.com>

docs/admin/upgrade.rst

@@ -198,6 +198,9 @@ This upgrade also requires you to upgrade python-social-auth from 0.1.x to
 Upgrade from 2.0 to 2.1
 ~~~~~~~~~~~~~~~~~~~~~~~
 
+Please  adjust your :file:`settings.py` to match several changes in the
+configuration (consult :file:`settings_example.py` for correct values).
+
 The filesystem paths configuration has changed, the :setting:`GIT_ROOT` and
 :setting:`WHOOSH_INDEX` are gone and now all data resides in
 :setting:`DATA_DIR`. The existing data should be automatically migrated by
@@ -278,9 +281,6 @@ it prior to upgrading.
 Upgrading to Django 1.7
 -----------------------
 
-Please  adjust your :file:`settings.py` to match several changes in the
-configuration (consult :file:`settings_example.py` for correct values).
-
 Django 1.7 has a new feature to handle database schema upgrade called
 "migrations" which is incompatible with South (used before by Weblate).