diff --git a/bookmarklet.js b/bookmarklet.js
index 6a63225..799ab46 100644
--- a/bookmarklet.js
+++ b/bookmarklet.js
@@ -1,3 +1,4 @@
+// card layout: https://jsfiddle.net/qoomon/cdsy7h8k/#base
 (function() {
     var version = "3.5.0";
     console.log("Version: " + version);