diff --git a/README_docker.md b/README_docker.md
index ccd10d8..4238aaf 100644
--- a/README_docker.md
+++ b/README_docker.md
@@ -1,7 +1,7 @@
 # Docker for Trigger Happy
 
 This is a very very early stage for docker support
-but this should do the trick until next time
+but this should do the trick until next time based on https://docs.docker.com/engine/reference/commandline/build/ and https://docs.docker.com/compose/django/ and a bit of https://hub.docker.com/_/django/
 
 ## Build