docs: add mirroring documentation - #8679

Bugbot Analysis Progress (1m 19s elapsed)

✅ Gathered PR context (3s)
✅ Completed bug detection (1m 15s)
✅ Posted analysis results (1s)

Final Result: Bugbot completed review - no issues found! ✅

Request ID: serverGenReqId_647921e1-5fb7-4749-be8c-ce03d371f951