[wwwdocs] ARC's gcc7.x release notes

[Gerald Pfeifer]

On Wed, 22 Mar 2017, Claudiu Zissulescu wrote:
> That's great news, thank you Gerald for the quick review. I still have 
> one question, as I never worked with wwwdocs, do I need to perform extra 
> operations (like updating a ChangeLog kind of file) before committing my 
> patch to cvs trunk?

No special magic, just go for it (`cvs commit`). :-)

Gerald