Related to:
- https://review.opendev.org/#/c/723044/
- https://governance.openstack.org/tc/goals/selected/ussuri/project-ptl-and-contrib-docs.html

Change-Id: I4682bf7f59bfbbb0c060e86b6b0a5a60da271b47

Use https instead of http to ensure the safety without containing our
account/password information

Change-Id: Icf3c839f411b52d6d93ec42728486b6239a97a0d

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

Change-Id: I6701205bf33e4632dff2ba721c3106ede87e368e

Change-Id: Ie53eb4d2e85601feb281c57c569048e2c533320a

Fix up the readme and contributing files.

Add history file.

Change-Id: I9c56e8db74d0abae03581a0633a6ae783201e397