Update CONTRIBUTING.md

CONTRIBUTING.md

@@ -1,3 +1,14 @@
-# Add an Arweave application to be notified from
+# Welcome
 
-TODO: update `arweave_helper.ts` to provide an Array of queries easily updatable. The node would send the list of applications (data protocol) they are able to provide to the frontend
+This document is WIP.
+
+There are 2 types of possible contributions:
+
+## 1. Add an Arweave application to be notified from
+
+TODO: update `arweave_helper.ts` to provide an Array of queries easily updatable. The node would send the list of applications (data protocol) they are able to provide to the frontend
+
+## 2. Add a notification medium
+
+- Discord API
+- Instagram API