add section for [BugsToPlug](https://trac.torproject.org/projects/tor/wiki/TorWeeklyNews/BugsToPlug) ([diff](https://trac.torproject.org/projects/tor/wiki/TorWeeklyNews/Template?action=diff&version=21)) URL: https://trac.torproject.org/projects/tor/wiki/TorWeeklyNews/Template?version=21