Docs describe non-existent validation options

[Steven Hardy]

The openstack overcloud validate CLI interface was removed in this commit (prior to python-tripleoclient getting created):

https://github.com/rdo-management/python-rdomanager-oscplugin/commit/a8c069c6e794f0846bafa348defe48500701da56

However our docs still mention the non-existent CLI command.

http://docs.openstack.org/developer/tripleo-docs/basic_deployment/basic_deployment_cli.html#post-deployment

We need to align the docs with the new interface, and explain how to validate the deployed overcloud direct via tempest with the generated config.

[Steven Hardy (shardy)]

Looks like this is addressed by https://review.openstack.org/#/c/221664/ but we've just made slow progress landing it.

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/221664
Committed: https://git.openstack.org/cgit/openstack/tripleo-docs/commit/?id=d9bab42f964bb18b12b24929bd5fc55e768ebfbf
Submitter: Jenkins
Branch: master

commit d9bab42f964bb18b12b24929bd5fc55e768ebfbf
Author: Imre Farkas <email address hidden>
Date: Wed Sep 9 11:19:38 2015 +0200

    Replace doc for overcloud validate with manually running Tempest

    Change-Id: I1f9acab519eb7af45b4a737f01c9cfb53ce7caad
    Closes-bug: #1505129