9de70aed23
This imports the cli-reboot-an-instance end user guide docs from the openstack-manuals repo [1]. As part of the docs migration in Pike, these were forgotten. The copied contents come from the stable/ocata branch of openstack-manuals [2]. There are two minor content changes from the original: 1. The "shutdown_timeout" config option is linked to the docs. 2. The "nova rescue" command usage is replaced with "openstack server rescue". [1] https://docs.openstack.org/ocata/user-guide/cli-reboot-an-instance.html [2] https://github.com/openstack/openstack-manuals/blob/stable/ocata/doc/user-guide/source/cli-reboot-an-instance.rst Change-Id: I6701e43fd80fb17df5cc703df766390ab838289a Partial-Bug: #1714017