(DOCSP-28413) Link to a live demo for the multi-cluster deployment (#1321)

* (DOCSP-28413) Added a link to the Multi-Cluster Quick Start Demo

* Fix the link

* edits

* Fix headings, ready for a review

Author: JuliaMongo

source/multi-cluster-overview.txt

@@ -16,7 +16,6 @@ Overview
    :depth: 2
    :class: singlecol
 
-
 |Multi-clusters| enable different levels of resilience, depending on the
 needs of your enterprise application:
 
@@ -58,7 +57,7 @@ To learn more, see :ref:`multi-cluster-arch-ref`.
 
    This deployment uses a service mesh. This simplifies configuring |multi-clusters|.
    A service mesh enables inter-cluster communication between the replica set
-   members deployed in different |k8s| clusters.  MongoDB development has
+   members deployed in different |k8s| clusters. MongoDB development has
    tested these deployments with |istio|, but any service mesh that provides |fqdn|
    hostname resolution between Pods across clusters should work. To learn more,
    see :ref:`Plan for External Connectivity <mc_plan_external_connectivity>`.

source/multi-cluster-quick-start.txt

@@ -32,6 +32,16 @@ Before you begin:
    watch resources in :ref:`multiple namespaces <mc-cluster-many-namespaces-ref>`
    or :ref:`all namespaces <mc-cluster-all-namespaces-ref>`.
 
+Prefer to Learn by Watching?
+-----------------------------
+
+Follow along with this video tutorial walk-through that demonstrates how to
+create a |multi-cluster|.
+
+*Duration: 12 Minutes*
+
+`Deploying a MongoDB Replica Set across Multiple Kubernetes Clusters <https://www.youtube.com/watch?v=iPvoqxbFJd8>`__
+
 .. _multi-cluster-tls-overview:
 
 Deploy a MongoDBMultiCluster Resource

source/multi-cluster.txt

@@ -50,8 +50,6 @@ Deploy MongoDB Resources on Multiple Kubernetes Clusters
 :ref:`multi-cluster-connect-ref`
   Connect to a |mongodb-multi|.
 
-
-
 :ref:`disaster-recovery-ref`
   Set a disaster recovery mode for your |multi-cluster|.