Changelog: Fixed rst indentation issue

Changelog

@@ -16,14 +16,13 @@ Important notes
 
 * Celery is now following the versioning semantics defined by `semver`_.
 
-This means we are no longer allowed to use odd/even versioning semantics
-(see http://github.com/mojombo/semver.org/issues#issue/8).
-By our previous versioning scheme this stable release should have
-been version 2.2.
-
-The document describing the our release cycle and versioning scheme
-can be found at `Wiki: Release Cycle`_.
+    This means we are no longer allowed to use odd/even versioning semantics
+    (see http://github.com/mojombo/semver.org/issues#issue/8).
+    By our previous versioning scheme this stable release should have
+    been version 2.2.
 
+    The document describing the our release cycle and versioning scheme
+    can be found at `Wiki: Release Cycle`_.
 
 .. _`semver`: http://semver.org
 .. _`Wiki: Release Cycle`: http://wiki.github.com/ask/celery/release-cycle.