Documentation improved

Author: siegfriedweber

docs/modules/ROOT/pages/monitoring/logs.adoc

@@ -2,7 +2,7 @@
 
 The logs of a pod can be retrieved with `kubectl logs`.
 
-    $ kubectl logs kafka
+    $ kubectl logs apache-kafka
     [2021-06-01 13:51:03,852] INFO Registered kafka:type=kafka.Log4jController MBean (kafka.utils.Log4jControllerRegistration$)
     [2021-06-01 13:51:04,361] INFO Registered signal handlers for TERM, INT, HUP (org.apache.kafka.common.utils.LoggingSignalHandler)
     [2021-06-01 13:51:04,362] INFO starting (kafka.server.KafkaServer)
@@ -12,7 +12,7 @@ node. This is the case for Debian 10 and CentOS 8 but not for CentOS 7.
 The annotation `featureLogs` with a value of `true` or `false` is added
 to all pods to indicate the availability of the logs.
 
-    $ kubectl describe pod kafka
+    $ kubectl describe pod apache-kafka
     …
     Annotations:  featureLogs: true
     …