CONTRIBUTING: provide a template for new issues

_maybe_ we could even automate this to populate and complain in some
situations.

I see https://github.com/isaacs/github/issues/99 that is old and needs
some love from @github ...

@tianon @unclejack @shykes 

Signed-off-by: Vincent Batts <vbatts@redhat.com>
Yes…. but we probably need a shorter URL.

> On Oct 31, 2014, at 11:35 AM, Michael Crosby <notifications@github.com> wrote:
> 
> In CONTRIBUTING.md:
> 
> > @@ -51,6 +51,45 @@ Please also include the steps required to reproduce the problem if
> >  possible and applicable.  This information will help us review and fix
> >  your issue faster.
> >  
> > +### Template
> > +
> > +```
> > +Description of problem:
> > +
> > +
> > +`docker version`:
> > +
> > +
> > +`docker info`:
> > +
> > +
> > +`uname -a`:
> like this:
> curl -s https://raw.githubusercontent.com/docker/docker/master/contrib/check-config.sh | bash
> 
> —
> Reply to this email directly or view it on GitHub <https://github.com/docker/docker/pull/8845/files#r19685146>.
>