The kubectl command output suggests a user find more information at the
github source repo, eg:
$ kubectl --help
kubectl controls the Kubernetes cluster manager.
Find more information at https://github.com/kubernetes/kubernetes.
But there is curated user documentation available at, eg:
https://kubernetes.io/docs/reference/kubectl/overview/
which upon referencing yields a much better experience for a user than the
top of the source repo.
Fixes#56511
Signed-off-by: Tim Pepper <tpepper@vmware.com>