[DOCS] Moves monitoring settings (#40167)

docs/reference/monitoring/configuring-monitoring.asciidoc

@@ -17,5 +17,4 @@ To learn about monitoring in general, see
 
 include::collecting-monitoring-data.asciidoc[]
 include::configuring-metricbeat.asciidoc[]
-include::indices.asciidoc[]
-include::{es-repo-dir}/settings/monitoring-settings.asciidoc[]
+include::indices.asciidoc[]

docs/reference/setup.asciidoc

@@ -57,6 +57,8 @@ include::settings/license-settings.asciidoc[]
 
 include::settings/ml-settings.asciidoc[]
 
+include::settings/monitoring-settings.asciidoc[]
+
 include::settings/security-settings.asciidoc[]
 
 include::settings/sql-settings.asciidoc[]