4ed5e81ee0
This imports the "launch instance" end user guide docs from the openstack-manuals repo. As part of the docs migration in Pike, these were forgotten. The copied contents come from the stable/ocata branch of openstack-manuals, and therefore likely need some updating, but that could be done in follow up changes. This is an initial import to (1) publish the content again somewhere and (2) fix broken links in the cinder docs for booting from volume. Change-Id: Ie039322660fd0e2e0403843448379b78114c425b Partial-Bug: #1714017 Related-Bug: #1711267