manual: document that ControlSocket is disabled by default
https://www.torproject.org/docs/tor-manual.html.en#ControlSocket
"
Like ControlPort, but listens on a Unix domain socket, rather than a TCP socket. 0 disables ControlSocket (Unix and Unix-like systems only.)
"
Please add:
"(Default: 0)" add the end (as you do with most other entries).
issue