Update footnote 4 #136
Description
Footnote 4 was the state of affairs in August, that information is probably outdated by now.
We now have two protocols to test:
- required as a SHOULD by Solid 0.9: https://github.com/solid/solid-spec/blob/master/api-websockets.md
- mentioned non-normatively in the spec as a future direction, and currently in Editor's Draft: https://solid.github.io/notifications/protocol