Update monitor-apm-server.asciidoc (#10901)

correction: switch ECE and ESS (was inverted)
(cherry picked from commit d51f86d)

docs/monitor-apm-server.asciidoc

@@ -22,10 +22,10 @@ Select your deployment method to get started:
 {ecloud} manages the installation and configuration of a monitoring agent for you -- so
 all you have to do is flip a switch and watch the data pour in.
 
-* **{ess}** user? See {ece-ref}/ece-enable-logging-and-monitoring.html[ESS: Enable logging and monitoring].
-* **{ece}** user? See {cloud}/ec-enable-logging-and-monitoring.html[ECE: Enable logging and monitoring].
+* **{ess}** user? See {cloud}/ec-enable-logging-and-monitoring.html[ESS: Enable logging and monitoring].
+* **{ece}** user? See {ece-ref}/ece-enable-logging-and-monitoring.html[ECE: Enable logging and monitoring].
 
 
 include::./monitor.asciidoc[]
 
-include::{docdir}/monitoring/monitoring-beats.asciidoc[leveloffset=+2]
+include::{docdir}/monitoring/monitoring-beats.asciidoc[leveloffset=+2]