Please add a version note for tokio while using 0.2

[Blair Noctis]

I happened to run into this problem. cargo run said #[tokio::main] needs tokio, so I went to https://crates.io/crates/tokio to check it out. It said its version is 1.0.1. So I wrote my Cargo.toml tokio = { version = '1.0.1', features = ['full'] }. Then it went

thread 'main' panicked at 'must be called from the context of Tokio runtime configured with either basic_scheduler\ or threaded_scheduler', /home/i/.cargo/registry/src/github.com-1ecc6299db9ec823/tokio-0.2.24/src/task/spawn.rs:131:10

Not until I read Cargo.toml of fantoccini did I realize I should use the same version of tokio. Quite some confusion was it.

[Jon Gjengset]

This should hopefully be fixed soon with #114 :)

[Blair Noctis]

Great! 😄