Actualizar index.md argentina

I'm from Argentina :D

Author: B4uti4github

collections/made-in-argentina/index.md

@@ -12,6 +12,7 @@ items:
   - decentraland/marketplace
   - dropwizard/dropwizard
   - andresriancho/w3af
+  - B4uti4github/choppy-js
 display_name: Made in Argentina
 created_by: marcosnils
 image: made-in-argentina.png