First tentative of docbook tidy (tidy -xml -i filename.xml)
First tentative of docbook tidy (tidy -xml -i filename.xml)

Change-Id: Ibb0392bbd1ab54c8db47fbc862eeeabdc7047c5b

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