Description of problem:

Repository details are missing in the Satellite 6.16 upgrade document

https://docs.redhat.com/en/documentation/red_hat_satellite/6.16/html-single/upgrading_connected_red_hat_satellite_to_6.16/index#upgrading_a_connected_satellite_server_upgrading-connected

Below point is missing in the document:

Ensure that the Satellite Maintenance repository is enabled:

1. subscription-manager repos --enable \
   satellite-maintenance-6.16-for-rhel-8-x86_64-rpms
    

Actual behavior:
Repository details are not mentioned in the Satellite upgrade document.

Expected behavior:

Ensure that the Satellite Maintenance repository is enabled:

1. subscription-manager repos --enable \
   satellite-maintenance-6.16-for-rhel-8-x86_64-rpms
   Business Impact / Additional info: