Document URL: https://docs.openshift.com/container-platform/4.7/nodes/pods/nodes-pods-autoscaling.html

Describe the issue: As the support for multiple metrics in HPA is present in upstream, and works in Openshift 4.7 as well, can it be added to the Openshift documentation for better clarity. Confirmed the same with the engineering team [1].

[1] https://coreos.slack.com/archives/CK1AE4ZCK/p1624363573484700

Suggestions for improvement: Support for multiple metrics in HPA is present in Openshift as well and if possible an example on how to proceed with the configuration.

Additional information: Attaching the upstream documentation[2].

[2] https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/#support-for-multiple-metrics