[PATCH v2 2/2] docs: Note new requirement to include a SPDX line

[Stephen Finucane]

On Mon, 2018-09-17 at 18:17 +0100, Stephen Finucane wrote:
> Add some wording around the requirement to include this line instead
> of
> the license header. Also note the requirement that all code be
> GPLv2-licensed and add a CONTRIBUTING document, which GitHub likes.
> 
> Signed-off-by: Stephen Finucane <stephen at that.guru>
> Cc: Daniel Axtens <dja at axtens.net>

Looks like patch 1/2 (or the earlier v1 rendition) didn't make it to
the list. It's basically the following diff for all files:

   -# This file is part of the Patchwork package.
   -#
   -# Patchwork is free software; you can redistribute it and/or modify
   -# it under the terms of the GNU General Public License as published by
   -# the Free Software Foundation; either version 2 of the License, or
   -# (at your option) any later version.
   -#
   -# Patchwork is distributed in the hope that it will be useful,
   -# but WITHOUT ANY WARRANTY; without even the implied warranty of
   -# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   -# GNU General Public License for more details.
   -#
   -# You should have received a copy of the GNU General Public License
   -# along with Patchwork; if not, write to the Free Software
   -# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
   +# SPDX-License-Identifier: GPL-2.0

Stephen