Update auto devops flow to support multi-cluster setup
Description
Currently if a user follows through the existing path in auto devops AND is using multiple clusters, auto devops will not work.
Proposal
1. Place new text in both Auto DevOps settings as well as Kubernetes "add cluster" screen. Provide a hyperlink to the new help documents that instruct user how to achieve this.
Auto DevOps Settings Mock
Kubernetes Add Cluster Mock
Both hyperlinks should take user here:
https://docs.gitlab.com/ee/topics/autodevops/#using-multiple-kubernetes-clusters
Edited by Taurie Davis