Add OHL License Note
As agreed, the project is to be made available under CERN Open Hardware Licence. This requires adding license note on each page, following instructions. The note is as follows
Copyright CERN 2020.
This source describes Open Hardware and is licensed under CERN-OHL-W v2 or later
You may redistribute and modify this documentation and make products
using it under the terms of the CERN-OHL-W v2 (https:/cern.ch/cern-ohl).
This documentation is distributed WITHOUT ANY EXPRESS OR IMPLIED
WARRANTY, INCLUDING OF MERCHANTABILITY, SATISFACTORY QUALITY
AND FITNESS FOR A PARTICULAR PURPOSE. Please see the CERN-OHL-W v2
for applicable conditions.
Example from White Rabbit Switch v4