Point docs to docs.rs

[bvssvni]

The docs under http://docs.piston.rs/ are out of date and people are not using them because of docs.rs is more convenient. I think we should point the links over to docs.rs.

Is there a way to point to the latest crate version on docs.rs?

[echochamber]

@bvssvni

Can't make a PR right now, but I think changing this line in the Cargo.toml file and republishing should fix it.

From here.

First line of this page makes me think its not possible to update the link in the existing version. So I think it requires publishing a new version. I haven't published a crate before so I'm not sure.

[bvssvni]

I figured it out: You can link to e.g. "docs.rs/piston" and it will redirect to the latest version, e.g. "https://docs.rs/piston/0.32.0/piston/".

We could generate a TODO-list from Eco and publish minor updates.

[bvssvni]

This is now done for the Piston core.