(DOCSP-49777) Fix incorrect endpoint name (#2155) (#2166)

(cherry picked from commit 3378421)

Author: jromo-mdb

source/multi-cluster-disaster-recovery.txt

@@ -159,8 +159,8 @@ The following tutorial for manual disaster recovery assumes that you:
 
 
 The |k8s-op-short| periodically checks for connectivity to the clusters
-in the |multi-cluster| by pinging the ``/healthz`` endpoints of the
-corresponding servers. To learn more about ``/healthz``, see |k8s-healthchecks|.
+in the |multi-cluster| by pinging the ``/readyz`` endpoints of the
+corresponding servers. To learn more about ``/readyz``, see the |k8s-healthchecks|.
 
 In the case that ``CLUSTER_3`` in our example becomes unavailable, the
 |k8s-op-short| detects the failed connections to the cluster and marks the