Under Incident Mirroring, add steps to set mappers (#17261) (#17288)
Under Incident Mirroring, add steps to set mappers (#17261) (#17288)

I think it's important to add a note here to set the mappers because without mappers, mirroring won't work.

Co-authored-by: Ali Sawyer <bda008c359c2b493c4fe5c228519ea473fef089b@users.noreply.github.com>
Co-authored-by: merit <c4236a21fc2a5117b73302bad21133b46f5ef6af@gmail.com>
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