Added MAC Help release log

Property	Value
description	Added public release-history coverage for the MAC Help branch reconciliation release.
version	0.72.0
type	Create
related	MAC Docs, MAC Help

• Added the sources/log/mac-help/ release-history tree.
• Added the MAC Help v0.8.3 version page and release entries.
• Added matching .base tables for the MAC Help release-history hub and version page.