++matrix note

apps/matrix/README.md

@@ -43,3 +43,14 @@ docker run -d --name synapse \
 # admin user
 
 docker exec -it synapse register_new_matrix_user http://localhost:8008 -c /data/homeserver.yaml --help
+
+# Setup in terms of functionality
+
+## Synapse
+
+* Base, clear
+
+## Element
+
+* Another FQDN
+* If set, another nginx instance