Setting kind name as CAPN

Author: gyliu513

docs/README.md

@@ -19,7 +19,7 @@ cd cluster-api-provider-nested
 ### Create `kind` cluster
 
 ```shell
-kind create cluster
+kind create cluster --name=capn
 ```
 
 ### Install `cert-manager`
@@ -53,8 +53,8 @@ cd ..
 export PULL_POLICY=Never
 export TAG=dev
 make docker-build release-manifests
-kind load docker-image gcr.io/cluster-api-nested-controller-amd64:dev
-kind load docker-image gcr.io/nested-controlplane-controller-amd64:dev
+kind load docker-image gcr.io/cluster-api-nested-controller-amd64:dev --name=capn
+kind load docker-image gcr.io/nested-controlplane-controller-amd64:dev --name=capn
 ```
 
 ### Deploy CAPN