Updated openstack/openstack
Project: openstack/tempest-lib  482b5981d78b31d6f248ed8d4f7ef631a6b4d0ff

Workflow documentation is now in infra-manual

Replace URLs for workflow documentation to appropriate parts of the
OpenStack Project Infrastructure Manual.

Change-Id: I0247378d9ec5491f749cbaba71502e60298c851b