1. Unpublish the current arch-design and temporarily relocate it to a
"to archive" directory until the archiving structure is available
2. Publish the arch-design-draft to docs.openstack.org
3. Unpublish arch-design-draft from https://docs.openstack.org/draft/
Change-Id: Ida5f237d2edce7a83a24c376c355e2c220bc8c28
Implements: blueprint arch-design-pike