feat(reporting): add README which explain how to get token

Author: MikaelVallenet

reporting/README.md

@@ -0,0 +1,8 @@
+# Reporting :detective:
+
+This directory contains the code for the reporting system.\
+For launching the reporting script, you will need a github & twitter token.
+
+You can find these tokens in the following links:
+- twitter: https://developer.twitter.com/en/docs/authentication/oauth-2-0
+- github: https://docs.github.com/en/free-pro-team@latest/github/authenticating-to-github/creating-a-personal-access-token