adjust documentation

Author: xeniape

docs/modules/zookeeper/pages/usage_guide/monitoring.adoc

@@ -4,21 +4,21 @@
 The managed ZooKeeper instances are automatically configured to export Prometheus metrics.
 See xref:operators:monitoring.adoc[window=_blank] for more details.
 
-Depending on the SDP version, different ZooKeeper monitoring systems are used to produce metrics.
-Previously, JMX in combination with JMX Exporter was used. Starting with SDP 25.7 the New Metrics System is utilized.
+Depending on the SDP version, different ZooKeeper monitoring systems are used to produce metrics. Currently, JMX in combination with JMX Exporter
+is used, but will be removed in a later release. Starting with SDP 25.7 the built-in Prometheus support of ZooKeeper is also added.
 The naming of the metrics differs between the two systems.
 
 == Metrics
 
-Starting with SDP 25.7 ZooKeeper is configured to export metrics using the built in Prometheus provider. More on the Prometheus provider in
+Starting with SDP 25.7 ZooKeeper is configured to export metrics using the built-in Prometheus provider. More on the Prometheus provider in
 the https://zookeeper.apache.org/doc/current/zookeeperMonitor.html[ZooKeeper Monitor Guide,window=_blank].
 
 The configuration is located in the `zoo.cfg`:
 
 [source,properties]
 ----
 metricsProvider.className=org.apache.zookeeper.metrics.prometheus.PrometheusMetricsProvider
-metricsProvider.httpPort=9505
+metricsProvider.httpPort=7000
 ----
 
 The metrics can be accessed by calling the `/metrics` endpoint on the specified port.