docs: update README.md

README.md

@@ -77,7 +77,9 @@ If you want to install Kubernetes from scratch, you can try [kubespray](https://
 - [Dynamic QoS](docs/qos.md)
 - [Subnet Gateway and Direct connect](docs/subnet.md#gateway)
 - [Pod Gateway](docs/pod-gw.md)
-- [Multi-Cluster Network](docs/cluster-interconnection.md)
+- Multi-Cluster Network
+  - [Multi Cluster with ovn-ic](docs/cluster-interconnection.md)
+  - [Multi Cluster with Submariner](docs/cluster-submariner.md)
 - Network interconnection with OpenStack
   - [Separated Kubernetes and OpenStack connected by OVN-IC](docs/OpenStackK8sInterconnection.md)
   - [Kubernetes and OpenStack based on the same OVN deployment](docs/OpenstackOnKubernetes.md)

docs/multiple-cluster-on-Kubeovn.md → docs/cluster-submariner.md

@@ -1,10 +1,10 @@
-# Multiple Cluster On KubeOVN
+# Multiple Cluster with Submariner
 
 Currently, multiple Kubernetes clusters need to be deployed for many obvious reasons. 
 
 However, some of the Kubernetes features still need to be preserved, as an example, service discover, and service IP.
 
-This doc introduces some solutions to build multipe clusters.
+This doc introduces some solutions to build multiple clusters.