docs: w1: Fix SPDX-License-Identifier syntax

ReST directives are introduced with two dots.

Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
This commit is contained in:
Jonathan Neuschäfer 2019-10-05 22:01:23 +02:00 • committed by Jonathan Corbet
commit d8fb03e1ea