broken link from image guide to CLI reference

[Adam Spiers]

https://docs.openstack.org/image-guide/image-metadata.html says:

   Common image properties are also specified in the
   /etc/glance/schema-image.json file. For a complete list of valid
   property keys and values, refer to the OpenStack Command-Line
   Reference.

which links to https://docs.openstack.org/cli-reference/glance.html#image-service-property-keys - but that redirects to https://docs.openstack.org/python-openstackclient/latest/#image-service-property-keys where unfortunately that anchor doesn't exist. I tried for a while to find the correct link so I could submit a fix, but sadly failed...

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/608510

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/608510
Committed: https://git.openstack.org/cgit/openstack/openstack-manuals/commit/?id=6084f10333d7662a4f98994db49fd52bf9bf68f2
Submitter: Zuul
Branch: master

commit 6084f10333d7662a4f98994db49fd52bf9bf68f2
Author: zhang.lei <[e-mail]>
Date: Mon Oct 8 03:26:33 2018 +0000

    Fix the incorrect reference URL

    Change-Id: I30a650140cde20fff34b6c02e136ba6b43662d92
    Closes-Bug: #1796372