WebSocket example

[df51d]

I have trouble setting up simple websocket example, it panics with an error when calling on_upgrade:

there is no reactor running, must be called from the context of a Tokio 1.x runtime

Because axum tries to use tokio::spawn when upgrading. An example would be much appreciated.

[notgull]

Support for this would need to be added to smol-axum.