Note: Doc team updates the current version of the documentation and the
two previous versions (n-2), but we address *only high-priority, or
customer-reported issues* for -2 releases in support.
Describe the changes in the doc and link to your dev story:

1. - [ ] Mandatory: Add the required version to the Fix version/s field.

ACM 2.14, 2.15

2. - [ ] Mandatory: Choose the type of documentation change or review.

• [ ] We need to update to an existing topic

• [ ] We need to add a new document to an existing section

• [ ] We need a whole new section; this is a function not
  documented before and doesn't belong in any current section

• [ ] We need an Operator Advisory review and approval

• [ ] We need a z-Stream (Errata) Advisory and Release note for
  MCE and/or ACM

3. - [ ] Mandatory:

• https://github.com/openshift/runbooks/tree/master/alerts 

4. - [ ] Mandatory for GA content:

• [ ] Add steps, the diff, known issue, and/or other important
  conceptual information in the following space:

• [ ] *Add Required access level *(example, *Cluster
  Administrator*) for the user to complete the task:

• [ ] Add verification at the end of the task, how does the user
  verify success (a command to run or a result to see?)

• [ ] Add link to dev story here:

5. - [ ] Mandatory for bugs: 

Alerts that are generated by OpenShift and associated operators are publicly documented in runbooks repo but some of these alarms about ACM observability are missing: https://github.com/openshift/runbooks/tree/master/alerts 

Telco partners and customers require these documented procedures as a part of their Day-2 Operations on how to react to alarms. So, we need to some help about these alarms to be documented.
This is the list of alarms that I am talking about:

• ACMMetricsCollectorFederationError
• ACMMetricsCollectorForwardRemoteWriteError
• ACMRemoteWriteError
• ACMThanosCompactHalted
• ACMUWLMetricsCollectorFederationError
• ACMUWLMetricsCollectorForwardRemoteWriteError

It will be great if we can have some documentation for each of those alerts like: https://github.com/openshift/runbooks/blob/master/alerts/cluster-version-operator/ClusterVersionOperatorDown.md