Add a note about watchOS/tvOS support to the README

[pixlwave]

Hey, thanks for making this project. It might be useful to add whether watchOS and tvOS support works too?

I found the repo after searching for the possibility of running Rust code on watchOS, and think rust-bitcode might help with that, but not 100% sure?

Thanks 😄

[thombles]

Unfortunately all the references to "iOS" are intentional! I'll add a note to the readme to clarify, thanks.

At this time a watchOS triple hasn't been added to the Rust compiler at all, and tvOS is no_std-only: https://doc.rust-lang.org/nightly/rustc/platform-support.html

This is the issue for adding the new platforms: rust-lang/rust#48862

It is definitely in scope for this project to cover those other Apple platforms. Since Apple Watches require bitcode for submission it will be pretty important to align with Xcode.

[pixlwave]

Not to worry, thanks for clarifying 😊