Expose upgrade guide in base index
Expose upgrade guide in base index

Change-Id: Ieb5ed64853eee2de8a7c502db6204a1bf9c9e2d9

robb-romans/openstack-ansible,os-cloud/os-ansible-deployment,weezer/openstack-ansible,openstack/openstack-ansible,mancdaz/openstack-ansible,BjoernT/os-ansible-deployment,yanyao/openstack-ansible,cfarquhar/openstack-ansible,cloudnull/os-ansible-deployment,BjoernT/os-ansible-deployment,BjoernT/openstack-ansible,openstack/openstack-ansible,yanyao/openstack-ansible,yanyao/newton,cloudnull/os-ansible-deployment,stackforge/os-ansible-deployment,yanyao/newton,mancdaz/openstack-ansible,robb-romans/openstack-ansible,cfarquhar/openstack-ansible,bunchc/openstack-ansible,bunchc/openstack-ansible,Logan2211/openstack-ansible,BjoernT/openstack-ansible,weezer/openstack-ansible,BjoernT/os-ansible-deployment,stackforge/os-ansible-deployment,Logan2211/openstack-ansible,os-cloud/os-ansible-deployment