CfC: Publish "Permissions Registry" as a Draft Registry.

Hello, friendly security aficionados,

This is a CfC to publish the "Permissions Registry" (
https://github.com/w3c/permissions-registry/) document as a "Draft
Registry" (https://www.w3.org/2021/Process-20211102/#draft-registry),
with +Marcos
Caceres <marcosc@apple.com> (welcome back!) and +Mike Taylor
<miketaylr@google.com> as editors.

This CfC will run for the next two weeks, ending on June 17th.

To show support for publication, or to raise concerns, please visit
https://github.com/w3c/permissions-registry/issues/4, and leave your
emojified vote and/or comments.

Thank you!

-mike