1. - [x] Mandatory Add the required version to the Fix version/s field.
2. - [x] Mandatory Choose the type of documentation change.
      - [ ] New topic in an existing section or new section
      - [x] Update to an existing topic
3. - [x] Mandatory for GA content:
       - [x] Add steps and/or other important conceptual information here: 
       - [ ] Add Required access level for the user to complete the task here:
       - [ ] Add verification at the end of the task, how does the user verify success (a command to run or a result to see?)
       - [x] Add link to dev story here: ACM-6350
4. - [ ] Mandatory for bugs: What is the diff? Clearly define what the problem is, what the change is, and link to the current documentation:

Gatekeeper manifests can now have the "policy.open-cluster-management.io/severity" annotation set to set the severity for alerting.