chore: Add comment about spelling of core operators

Author: Techassi

modules/ROOT/partials/release-notes/release-25.7.adoc

@@ -81,6 +81,9 @@ The Spark operator watches for SparkConnectServer custom resources.
 Preliminary documentation is xref:spark-k8s:usage-guide/spark-connect.adoc[available] and the existing xref:demos:jupyterhub-pyspark-hdfs-anomaly-detection-taxi-data.adoc[Taxi Data Anomaly Detection demo] has been retrofitted to use a JupterLab client running against a Spark Connect server.
 Also see https://github.com/stackabletech/spark-k8s-operator/issues/284[spark-k8s-operator#284].
 
+// TODO (@Techassi): Define a single way of spelling internal operators, like listener, secret, and commons.
+// Currently, throughout this page variations like Stackable Listener Operator, Listener Operator, listener operator,
+// listener-operator are used. Only ONE must be used.
 ===== Stackable listener operator
 
 The Stackable Listener Operator can now use custom xref:listener-operator:listenerclass.adoc#servicetype-loadbalancer-class[LoadBalancer classes] and https://kubernetes.io/docs/concepts/services-networking/service/#load-balancer-nodeport-allocation[disable NodePort allocation].