bug#10399: [PATCH] Document win32 font backends

[Eli Zaretskii]

> From: Juanma Barranquero <lekktu@gmail.com>
> Date: Thu, 29 Dec 2011 17:21:08 +0100
> Cc: 10399-done@debbugs.gnu.org
> 
> On Thu, Dec 29, 2011 at 15:06, Daniel Colascione <dancol@dancol.org> wrote:
> 
> > -driver) and @code{xft} (the Xft font driver).  On other systems, there
> > +driver) and @code{xft} (the Xft font driver).  On Windows, there
> > +are currently two available font backends: @code{gdi} and
> > +@code{uniscribe}.
> > +On other systems, there
> 
> Committed, thanks.

Please add there an @xref to "(emacs)Windows Fonts", where there are
more details about that.

Thanks.