remove explicit filenames from doc paragraph

Author: maltesander

docs/modules/kafka/pages/index.adoc

@@ -33,7 +33,7 @@ image::kafka_overview.drawio.svg[A diagram depicting the Kubernetes resources cr
 For every xref:concepts:roles-and-role-groups.adoc#_role_groups[role group] in the `broker` role the operator creates a StatefulSet.
 Multiple Services are created - one at role level, one per role group as well as one for every individual Pod - to allow access to the entire Kafka cluster, parts of it or just individual brokers.
 
-For every StatefulSet (role group) a ConfigMap is deployed containing a `log4j.properties` file for xref:usage-guide/logging.adoc[logging] configuration and a `broker.properties` or file containing the whole Kafka configuration which is derived from the KafkaCluster resource.
+For every StatefulSet, a ConfigMap is deployed containing xref:usage-guide/logging.adoc[logging] properties and a Kafka configuration file which is derived from the KafkaCluster resource.
 
 The operator creates a xref:concepts:service_discovery.adoc[] for the whole KafkaCluster which references the Service for the whole cluster.
 Other operators use this ConfigMap to connect to a Kafka cluster simply by name and it can also be used by custom third party applications to find the connection endpoint.