Add gap between images in Debian Keystone installation
Add gap between images in Debian Keystone installation

Also improved XML formatting of the file section_keystone-install.xml.

Change-Id: Icde534f398cce89cde4980bc24bd616ee8b9ea64
Co-Authored-By: Diane Fleming <74b5c707682eb3691857bb45094f8aaf22a82a5d@austin.rr.com>

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