Update developer project listing
Update developer project listing

* add manila
* rename Volume to Block Storage (according to governance)

Change-Id: Idda110a44ece4c1a76376a736880c6aef318fafa

potsmaster/openstack-manuals,saeki-masaki/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,openstack/openstack-manuals,gongysh2004/openstack-manual,potsmaster/openstack-manuals,openstack/openstack-manuals,gongysh2004/openstack-manual,AlekhyaMallina-Vedams/openstack-manuals,Akasurde/openstack-manuals,openstack/openstack-manuals,openstack/openstack-manuals,AlekhyaMallina-Vedams/openstack-manuals,Akasurde/openstack-manuals,kairoaraujo/openstack-manuals,saeki-masaki/openstack-manuals,kairoaraujo/openstack-manuals