Subject: [ansible-devel] Minor change to the license listed in the project's README to GPLv3+

Greetings all,

I'm just letting you all know that I'm merging this PR today:

It changes the license listed in the README from "GNU General Public
License v3.0" to "GNU General Public License v3.0 or later".  We
consider this a clarification rather than a relicensing as both the
Ansible documentation[1]_ and the headers for contributed Ansible code
(for instance, this [2]_ and [3]_) say either "GNU Public License v3.0
or later" or the abbreviated form "GNU General Public License v3.0+".

.. _[1]:
.. _[2]:
.. _[3]: