Comment 6 for bug 1620233

Reviewed: https://review.openstack.org/433849
Committed: https://git.openstack.org/cgit/openstack/openstack-ansible/commit/?id=f32abc06101c63cb165ce6bc34852980f75ded04
Submitter: Jenkins
Branch: stable/ocata

commit f32abc06101c63cb165ce6bc34852980f75ded04
Author: Jimmy McCrory <email address hidden>
Date: Tue Feb 14 02:15:40 2017 -0800

    [DOCS] Include branch in links to role docs

    Create a new external link alias for role docs to simplify adding links
    for them within the deploy guide and to automatically include the
    correct branch name within those links.

    Closes-Bug: 1620233
    Change-Id: I02a474fabe5c1a7499e828c4661cf6b232886409
    (cherry picked from commit 92ccc1b8cda9c31c39a375fffe20561d24340745)