Improvement for k8s.io/docs/concepts/cluster-administration/coordinated-leader-election/

I've been trying to read up on how Kubernetes does leader election.

I came across the [Lease documentation](https://kubernetes.io/docs/concepts/architecture/leases/#leader-election) which - under the heading "Leader election" - states:

> Read **coordinated leader election** to learn about how Kubernetes builds on the Lease API to select which component instance acts as leader.

"Coordinated leader election" then links to this article:

However, this article basically only talks about how to enable Coordinated Leader Election - but not "about how Kubernetes builds on the Lease API to select which component instance acts as leader".

Did this part get lost during some documentation restructuring? Or was this never written?