diff --git a/gpslab/domain-event-bundle/2.2/config/packages/gpslab_domain_event.yaml b/gpslab/domain-event-bundle/2.2/config/packages/gpslab_domain_event.yaml
index 5969502a..a994c908 100644
--- a/gpslab/domain-event-bundle/2.2/config/packages/gpslab_domain_event.yaml
+++ b/gpslab/domain-event-bundle/2.2/config/packages/gpslab_domain_event.yaml
@@ -1,3 +1,5 @@
+# see https://github.com/gpslab/domain-event-bundle/blob/master/README.md#configuration
+
 gpslab_domain_event:
     # Publish domain events post a Doctrine flush event
     publish_on_flush: true