User Story: As a developer, I want to be able to deploy a multi-container pod through one Knative service creation similar to Kube which allows users to create a deployment unit that can package multiple containers as a single instance of an application.

Why: Users can deploy a wider range of workloads in the Knative Serving model easily with multiple container support and will have parity with Kubernetes.

This is a supported feature in OpenShift Serverless through upstream. 

This feature is already enabled be default in Serverless product. 

QE has tested it. 

We need to document it.