FYI: web-platform-tests Code of Conduct is now merged

Hi all,

Following up from my recent RFC (and thanks to those from the community who
came along and contributed constructively!), the web-platform-tests Code of
Conduct is now merged. The document can be found in the main wpt
repository, here[0] - please take some time to read through it.

Thanks,
Stephen

[0]:
https://github.com/web-platform-tests/wpt/blob/master/CODE_OF_CONDUCT.md