diff --git a/Makefile b/Makefile
--- a/Makefile
+++ b/Makefile
@@ -79,6 +79,7 @@ docs-cleanup:
 
 .PHONY: web-build
 ## Build JS packages static/js
+# https://hub.docker.com/r/huli/grunt
 web-build:
 	NODE_PATH=$(NODE_PATH) $(GRUNT)