Fix the command for a remote cluster

x-pack/plugins/cross_cluster_replication/README.md

@@ -5,7 +5,7 @@
 You can run a local cluster and simulate a remote cluster within a single Kibana directory.
 
 1. Start your "local" cluster by running `yarn es snapshot --license=trial` and `yarn start` to start Kibana.
-2. Start your "remote" cluster by running `yarn es source --license=trial -E cluster.name=europe -E transport.port=9400` in a separate terminal tab.
+2. Start your "remote" cluster by running `yarn es snapshot --license=trial -E cluster.name=europe -E transport.port=9400` in a separate terminal tab.
 3. Index a document into your remote cluster by running `curl -X PUT http://elastic:changeme@localhost:9201/my-leader-index --data '{"settings":{"number_of_shards":1,"soft_deletes.enabled":true}}' --header "Content-Type: application/json"`.
 Note that these settings are required for testing auto-follow pattern conflicts errors (see below).