Specify the load tested during Perf/scale runs
Specify the load tested during Perf/scale runs

This commit adds information around the load on the cluster during the
control plane testing to help users and customers plan their environment
accordingly.

vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs,vikram-redhat/openshift-docs