Guaranteed Scheduling For Critical Add-On Pods task does not link to details of built in PriorityClasses

Folks - on this page, regarding this language: "To mark a Pod as critical, set priorityClassName for that Pod to system-cluster-critical or system-node-critical. system-node-critical is the highest available priority, even higher than system-cluster-critical." This immediately brings to mind the question: "what do you mean by even higher, i.e. what is the effect?" A little searching yields this documentation which answers the question nicely. Consider adding some clarification on the effect of node vs cluster priority in your docs.