Fixed ccs syntax (elastic#17050)

cluster_one,cluster_two:logstash-* should be cluster_one:logstash-*,cluster_two:logstash-*

docs/management/index-patterns/management-cross-cluster-search.asciidoc

@@ -16,7 +16,7 @@ index pattern in Kibana with the convention `<cluster-names>:<pattern>`.
 
 For example, if you want to query logstash indices across two of the Elasticsearch clusters
 that you set up for cross cluster search, which were named `cluster_one` and `cluster_two`,
-you would use `cluster_one,cluster_two:logstash-*` as your index pattern in Kibana.
+you would use `cluster_one:logstash-*,cluster_two:logstash-*` as your index pattern in Kibana.
 
 Just like in raw search requests in Elasticsearch, you can use wildcards in your cluster names
 to match any number of clusters, so if you wanted to search logstash indices across any