docs: Add OpenShift preset as a prerequisite to applicable procedures

[kowen-rh]

This is a simple PR to add use of the openshift preset as a prerequisite to certain procedures which depend on the use of an OpenShift cluster.

[openshift-ci]

@robin-owen: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-crc	5a8cef6	link	true	/test e2e-crc

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[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: gbraad, robin-owen

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[gbraad]

This makes things clearer and a good start for documenting things related to the podman preset