Removes monitoring section from Stack Overview (#634) (#679)

Author: lcawl

docs/en/stack/index.asciidoc

@@ -20,8 +20,6 @@ include::{asciidoc-dir}/../../shared/attributes.asciidoc[]
 
 include::introduction.asciidoc[]
 
-include::monitoring/index.asciidoc[]
-
 include::ml/index.asciidoc[]
 
 include::{es-repo-dir}/ccr/index.asciidoc[]

docs/en/stack/introduction.asciidoc

@@ -11,8 +11,8 @@ For a quick overview, see: https://www.elastic.co/products
 === Where to Go Next
 
 * {stack-gs}/get-started-elastic-stack.html[Getting started with the {stack}]
-* <<security-getting-started, Getting Started with Security>>
-* <<xpack-monitoring, Getting Started with Monitoring>>
+* {ref}/security-getting-started.html[Getting started with security]
+* {ref}/monitor-elasticsearch-cluster.html[Monitor a cluster]
 * {kibana-ref}/reporting-getting-started.html[Getting Started with Reporting]
 * {kibana-ref}/graph-getting-started.html[Getting Started with Graph]
 

docs/en/stack/monitoring/esms.asciidoc

@@ -812,3 +812,15 @@ See {ref}/trb-security-path.html[Failures due to relocation of the configuration
 
 This page has moved. 
 See {ref}/security-limitations.html[Security limitations].
+
+[role="exclude",id="xpack-monitoring"]
+=== Monitoring the {stack}
+
+This page has moved.
+See {ref}/monitor-elasticsearch-cluster.html[Monitor a cluster].
+
+[role="exclude",id="esms"]
+=== {esms}
+
+This page has moved.
+See {ref}/esms.html[{esms}].