How can you create a simple `Flux` that emits integers from 1 to 5 in Project Reactor?
`Flux.just(1, 2, 3, 4, 5)` creates a simple `Flux` emitting integers from 1 to 5.
Great! You've correctly identified how to create a `Flux` using `just`.
Can you explain how the `subscribe()` method works in this case to consume the emitted values?