Update the documention for doc migration

Change-Id: Ie6d322d1b9c93118af7c74986993010b9f4b76b2
diff --git a/HACKING.rst b/HACKING.rst
index dbb758b..77a8612 100644
--- a/HACKING.rst
+++ b/HACKING.rst
@@ -2,7 +2,7 @@
 ====================
 
 - Step 1: Read the OpenStack Style Commandments
-  http://docs.openstack.org/developer/hacking/
+  https://docs.openstack.org/hacking/latest/
 - Step 2: Read on
 
 Tempest Specific Commandments