how to websocket. some questions.

js/babl/README.md

@@ -17,6 +17,11 @@ a simple, web-based chat server using websockets.
  hubot? (setup is quite complex, need to understand quite a few
  different parts)
## wishlist
* how do we websocket efficiently? should we batch (both client and
  server), should/could we send binary?
## api playground
here are some ideas how the api could look.