[patch, wwwdocs] onlinedocs: Update link names for "GNU Fortran"

[Gerald Pfeifer]

On Tue, 24 Jul 2007, Tobias Burnus wrote:
> This patch updates the names, which was suggested by Janne Blomqvist.
> The names match what is displayed as title of each document.
> 
> OK for check in?

Sure, go ahead!  (This is the kind of change you can just commit
without review, I'd claim. ;-)

Gerald