[release] Adopts tools/publishdocs.sh for Mitaka
[release] Adopts tools/publishdocs.sh for Mitaka

Change-Id: I4b3f74f4040506057e13fbcfc2929a00d540ceea

openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals