Updating SpanExporter comment

Signed-off-by: Eric Evans <[email protected]>

Author: ericevans-nv

src/nat/observability/exporter/span_exporter.py

@@ -196,7 +196,7 @@ def _process_start_event(self, event: IntermediateStep):
         span_kind = event_type_to_span_kind(event.event_type)
         sub_span.set_attribute(f"{self._span_prefix}.span.kind", span_kind.value)
 
-        # Enable Phoenix session grouping by setting session.id from conversation_id
+        # Enable session grouping by setting session.id from conversation_id
         try:
             conversation_id = self._context_state.conversation_id.get()
             if conversation_id: