The api documentation is now published on docs.openstack.org instead
of developer.openstack.org. Update all links that are changed to the
new location.
Note that Neutron publishes to api-ref/network, not networking anymore.
Note that redirects will be set up as well but let's point now to the
new location.
For details, see:
http://lists.openstack.org/pipermail/openstack-discuss/2019-July/007828.html
Change-Id: Id2cf3aa252df6db46575b5988e4937ecfc6792bb
Add the description for the following items
in the API reference and the API guide.
* 'X-Openstack-Request-Id' header in request
* 'X-Openstack-Request-Id' header in response
* 'X-Compute-Request-Id' in response
Change-Id: Idd9181c1530eb9576da9941416b697a97c0cfb8d
Closes-Bug: #1693555
