Cite OpenITP for [GoAgent](https://trac.torproject.org/projects/tor/wiki/doc/GoAgent) being the most widely used circumvention tool. ([diff](https://trac.torproject.org/projects/tor/wiki/doc/GoAgent?action=diff&version=4)) URL: https://trac.torproject.org/projects/tor/wiki/doc/GoAgent?version=4