Phoenix Channels is listening (via JS) on the frontend to `room:weather`
and updating the wind speed as messages are received. The Nerves
application is uing phoenix_gen_socket_client to join the `room:weather`
topic and emit `new_weather` messages with readings from the wind speed
and temperature data every second. A supervisor will start the socket
connection and register its pid with the Registry. This allows the use
of `Process.send/3` and `handle_info` for communication over the
socket.

I removed the default css cruft that comes with Phoenix 1.4 in favor
of TailwindCSS. A basic two card layout was used to display data for
now.