+..
+ SPDX-FileCopyrightText: 2020 Philippe Proulx <eeppeliteloop@gmail.com>
+ SPDX-License-Identifier: CC-BY-SA-4.0
+
.. non-breaking space substitution
(see <https://docutils.sourceforge.io/docs/user/rst/quickref.html#substitution-references-and-definitions>):