no red for double backtick markups

[Ruby Loo]

The colour red has different connotations, it can be (in North America) associated with danger, error, warning. We shouldn't use red to highlight terms -- anything that is marked up with `` (double backticks) [1].

There was a short email discussion about this, no one mentioned that they wanted the red [2].

I think a monospace font, bolded, would be sufficient. I don't think we need it to be a different colour from the surrounding text.

[1] https://docs.openstack.org/contributor-guide/rst-conv/inline-markups.html
[2] http://lists.openstack.org/pipermail/openstack-dev/2017-August/121414.html

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/505348

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/505348
Committed: https://git.openstack.org/cgit/openstack/openstackdocstheme/commit/?id=e99cf6d96c0c79805ad2c155948e55d89704ce90
Submitter: Jenkins
Branch: master

commit e99cf6d96c0c79805ad2c155948e55d89704ce90
Author: Ruby Loo <email address hidden>
Date: Tue Sep 19 13:44:28 2017 -0400

    No red with double backticks markup

    The double backticks (``) markup caused text to be displayed in
    red with a pinkish background colour. The text is now displayed
    in black and bold, the same size as the surrounding text.

    Change-Id: Id73e828b69445aa9bf4c48bea84dd95fef16bc2b
    Fixes-Bug: 1718256