Description of problem:

In docs.redhat.com RHACM documentation a hyper link:

Installing and upgrading multicluster engine operator

is redirecting to a invalid blank page. 

https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/clusters/cluster_mce_overview 

Version-Release number of selected component (if applicable):

2.12 Documentation

How reproducible:

Always

Steps to Reproduce:

1. Open RHACM documentation
2. Chapter 1 >> Information >> Important 
3. Click on Installing and upgrading multicluster engine operator

Actual results:

404: Page not found

The page you're trying to find was either removed, moved, or maybe the URL isn't quite right.

Expected results:

It should redirect to a correct documentation link:

*https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_management_for_kubernetes/2.12/html/clusters/cluster_mce_overview#mce-install-intro*  **