Task

As an engineer working on RHDH, I want to publish an article so that customers are able to follow the guide and best practices to configure multiple auth providers while it is not yet GA supported.

Background

We opted to publicize this information in an article and not product docs, as it is not a common use case nor is it explicitly encouraged while this feature is not yet implemented. 

Dependencies and Blockers

QE impacted work
Documentation impacted work 

Acceptance Criteria