https://github.com/stolostron/rhacm-docs/pull/7025/files

Add-on section is confusing, as many come here looking for all the addons that are in RHACM. This is separated from MCE, so that is why it is in it's own section. We met with Sho about this, as it has come up a time or two.

This should move to install as advanced configuration. Minimally the topic name changes and the landing page and links change.

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: What is the diff? Clearly define what the
problem is, what the change is, and link to the current documentation. Only
use this for a documentation bug.