Lack of examples

Hi

Could you provide complete example for counter / todomvc app or something? I don't understand how to proper call async methods from rexie.

Counter app examples for:
- Leptos - https://github.com/leptos-rs/leptos/tree/main/examples/counter
- Yew - https://github.com/yewstack/yew/tree/master/examples/counter

p.s: thank you for `rexie`.