bug#32956: 26.1.50; t-m-m mark deactivation documentation

[charles@aurox.ch (Charles A. Roelli)]

> Date: Mon, 08 Oct 2018 05:28:33 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> 
> > diff --git a/doc/emacs/mark.texi b/doc/emacs/mark.texi
> > index 0ffa9f7..1050587 100644
> > --- a/doc/emacs/mark.texi
> > +++ b/doc/emacs/mark.texi
> > @@ -17,11 +17,13 @@ Mark
> >  changes.
> >  
> >  @cindex active region
> > +@cindex activating the mark
> >    Setting the mark at a position in the text also @dfn{activates} it.
> >  When the mark is active, we say also that the region is active; Emacs
> >  indicates its extent by highlighting the text within it, using the
> >  @code{region} face (@pxref{Face Customization}).
> >  
> > +@cindex deactivating the mark
> >    After certain non-motion commands, including any command that
> >  changes the text in the buffer, Emacs automatically @dfn{deactivates}
> >  the mark; this turns off the highlighting.  You can also explicitly
> 
> Fine with me, thanks.

Thanks, I've pushed it.