Hello, fellow reader! Welcome to the XSS Challenge Wiki!
You probably want to go here: https://github.com/cure53/xss-challenge-wiki/wiki
While this document is residing in the Cure53 repo-space, it's in fact an effort by many people. We do welcome pull requests and we do welcome participation, feedback, bug tickets and what not. Get in touch, send pull requests and file issues :)