Node Lease objects link url is updated.

Author: tamilselvan1102

content/en/docs/concepts/architecture/leases.md

@@ -25,7 +25,7 @@ namespace. Under the hood, every kubelet heartbeat is an **update** request to t
 the `spec.renewTime` field for the Lease. The Kubernetes control plane uses the time stamp of this field
 to determine the availability of this `Node`.
 
-See [Node Lease objects](/docs/concepts/architecture/nodes/#heartbeats) for more details.
+See [Node Lease objects](/docs/concepts/architecture/nodes/#node-heartbeats) for more details.
 
 ## Leader election