[DOCS] Wording correction (elastic#515)

lcawl · lcawl · commit 98d349d1ab12 · 2019-09-17T08:35:23.000-07:00
diff --git a/docs/en/stack/security/how-security-works.asciidoc b/docs/en/stack/security/how-security-works.asciidoc
@@ -3,8 +3,8 @@
 == How security works
 
 An Elasticsearch cluster is typically made out of many moving parts. There are
-the Elasticsearch nodes that form the cluster, and often Logstash instances,
-Kibana instances, Beats agents an clients, all communicating with the it.
+the Elasticsearch nodes that form the cluster and often Logstash instances,
+Kibana instances, Beats agents, and clients all communicating with the cluster.
 It should not come as a surprise that securing such clusters has many facets and
 layers.
 
