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* Trivial: Remove unnecessary new line Current HPA page[1] contains unnecessary new line between "metrics.k8s.io" and "custom.metrics.k8s.io", but that does not have any meaning. This removes it for the readability. [1]: https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale * Trivial: Replace RC with RS for HPA doc As RC doc[1], RS is now the recommended way to set up replication. So this replaces RC with RS for HPA doc. [1]: https://kubernetes.io/docs/concepts/workloads/controllers/replicationcontroller/