This is a Bug Report

Problem:
Invalid link referred by "kubefed unjoin" in "To remove a cluster from a federation, run the kubefed unjoin command with the cluster name and the federation’s."
It was supposed to redirect to k8's docs but invalid link reference of "kubefed unjoin" leads to error 404 page not found.

Proposed Solution:
Linking "kubefed unjoin" in "To remove a cluster from a federation, run the kubefed unjoin command with the cluster name and the federation’s" to a valid link that fulfill the context.

Page to Update:
https://kubernetes.io/docs/tasks/federation/set-up-cluster-federation-kubefed/