The new task page outlines steps for reconfiguring
a kubeadm cluster and persisting reconfiguration.
Link the new page from the existing guides for
"customizing components", "creating a cluster",
and "kubeadm upgrade".
Co-authored-by: Paco Xu <paco.xu@daocloud.io>
Co-authored-by: Qiming Teng <tengqm@outlook.com>