Manual: Add note about s3 bucket locations
Manual: Add note about s3 bucket locations

ar-jan/restic,middelink/restic,byo/restic,fawick/restic,kurin/restic,ar-jan/restic,arithmetric/restic,restic/restic,middelink/restic,jayme-github/restic,byo/restic,kurin/restic,stuertz/restic,restic/restic,jayme-github/restic,stuertz/restic,fawick/restic