[wwwdocs] readings.html - "Porting GCC for Dunces" is gone

[Hans-Peter Nilsson]

Ping.  I personally would prefer it being on gcc.gnu.org but
will arrange for an alternative, if that for some reason would
be inappropriate.  FWIW, the PDF weighs in at a whopping 474174
bytes.

> From: Hans-Peter Nilsson <hp@axis.com>
> Date: Mon, 11 Nov 2019 13:10:41 +0100
> 
> > From: Gerald Pfeifer <gerald@pfeifer.com>
> > Date: Sun, 10 Nov 2019 14:53:23 +0100
> 
> > Hi H-P,
> > 
> > it appears this download is gone. Do you have an alternate location?
> 
> Wha...?  No, not at the moment.
> 
> >    <li><a href="http://ftp.axis.se/pub/users/hp/pgccfd/">
> 
> While I could certainly enter a ticket and hope to get it
> reinstated that way, I guess it's time to just take the hint.
> 
> Can it be hosted on gcc.gnu.org?  From my point of view, that
> seems appropriate.
> 
> brgds, H-P
>