Apply suggested from automated review

Author: kbatuigas

modules/manage/pages/iceberg/specify-iceberg-schema.adoc

@@ -41,6 +41,8 @@ Creates an Iceberg table whose structure matches the latest schema registered fo
 
 Producers cannot use the wire format in `value_schema_latest` mode. Redpanda expects the serialized message as-is in the record value.
 
+NOTE: The `value_schema_latest` mode is not compatible with the xref:reference:rpk/rpk-topic/rpk-topic-produce[`rpk topic produce`] command which embeds the wire format header. You must use your own producer code to produce to topics in `value_schema_latest` mode.
+
 The latest schema is cached periodically. The cache period is defined by the cluster property `iceberg_latest_schema_cache_ttl_ms` (default: 5 minutes).
 
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