Update the documention for doc migration

Change-Id: Ie6d322d1b9c93118af7c74986993010b9f4b76b2
diff --git a/REVIEWING.rst b/REVIEWING.rst
index 9b272bb..5807d50 100644
--- a/REVIEWING.rst
+++ b/REVIEWING.rst
@@ -91,7 +91,7 @@
 anything backwards incompatible or would require a user to take note or do
 something extra.
 
-.. _reno: http://docs.openstack.org/developer/reno/
+.. _reno: https://docs.openstack.org/reno/latest/
 
 Deprecated Code
 ---------------