bug#25357: 25.1; Doc for `cursor-sensor-mode' (and modes generally)

[Eli Zaretskii]

> Date: Wed, 04 Jan 2017 19:59:07 +0200
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: 25357@debbugs.gnu.org
> 
> > Date: Wed, 4 Jan 2017 09:44:45 -0800 (PST)
> > From: Drew Adams <drew.adams@oracle.com>
> > 
> > More generally, I do not see, in either the Emacs or the Elisp manuals,
> > anywhere where we explain the argument to a major mode, telling you how
> > to turn the mode on/off from Lisp.
> 
> It's mentioned in "Minor Modes" in the user manual.

Also in "Minor Mode Conventions" in the ELisp manual.  The
corresponding "Major Mode Conventions" node could say that as well, of
course.