Meta: add a README

Author: domenic

README.md

@@ -0,0 +1,42 @@
+# WebSockets Standard
+
+This repository hosts the
+[WebSockets Standard](https://websockets.spec.whatwg.org/).
+
+## Code of conduct
+
+We are committed to providing a friendly, safe, and welcoming environment for all. Please read and
+respect the [WHATWG Code of Conduct](https://whatwg.org/code-of-conduct).
+
+## Contribution opportunities
+
+Folks notice minor and larger issues with the WebSockets Standard all the time and we'd love your
+help fixing those. Pull requests for typographical and grammar errors are also most welcome.
+
+We'd be happy to mentor you through this process. If you're interested and need help getting
+started, leave a comment on the issue or ask around [on chat](https://whatwg.org/chat).
+
+## Pull requests
+
+In short, change `undex.bs` and submit your patch, with a
+[good commit message](https://github.com/whatwg/meta/blob/main/COMMITTING.md). Consider
+reading through the [WHATWG FAQ](https://whatwg.org/faq) if you are new here.
+
+Please add your name to the Acknowledgments section in your first pull request, even for trivial
+fixes. The names are sorted lexicographically.
+
+## Building "locally"
+
+For quick local iteration, run `make`. To verify your changes locally, run `make deploy`. See more
+in the
+[WHATWG Contributor Guidelines](https://github.com/whatwg/meta/blob/main/CONTRIBUTING.md#building).
+
+## Merge policy
+
+If you can commit to this repository, see the
+[WHATWG Maintainer Guidelines](https://github.com/whatwg/meta/blob/main/MAINTAINERS.md).
+
+## Tests
+
+Tests can be found in the `websockets/` directory of
+[web-platform-tests/wpt](https://github.com/web-platform-tests/wpt).