Assures that the root README.me file renders images correctly on both
GitHub and Sphinx builded docs.
This should also allow us to review doc changes on zuul by loaded
their output.
Change-Id: I6cd54be73bfe25a75296af4984821320ebad7d97
Adds configuration for Context Search extension so you can easily
search between OpenStack related sites, proving very usefully if you
inspect the build logs and you don't know where a message comes from
or if there is a bug already created for a specific error message.
Change-Id: I1c9c99fe2cc6b5c71ec8fe8500e40a865232527c