diff --git a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
index 8dcf41e3..ec49d9ef 100644
--- a/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
+++ b/source/_posts/2019-09-13-live-blogging-symfonylive-london.md
@@ -155,4 +155,9 @@ Notifier
 
 ### Multiple buses
 
+* Command bus, query bus, event bus
+* Separate actions from reactions
+
+## Envelope
+
 *