Change from freenode to OFTC.
OpenStack Foundation got renamed to Open Infrastructure Foundation,
follow the rename and update links as well.
The infra-manual now lives on docs.opendev.org, update links and add a
New location is: https://docs.opendev.org/opendev/infra-manual/latest/
For the Contribute footer, point to Contributors Guide.
Based off conversation at the PTG, we agreed it would be
beneficial to ensure the contrib-guide is clearly marked
as the doc contrib guide outside of the title.
This change includes a redirect.
* In response to openstack-dev ML thread at
* Proof-of-concept that we would get both a GitHub UI addition of a linked
CONTRIBUTING file as well as a Sphinx include directive in the more detailed