Initial list of books

[glyn]

“The book”: https://doc.rust-lang.org/book/
Unsafe Rust: https://doc.rust-lang.org/nomicon/
Async Rust: https://rust-lang.github.io/async-book/
Rust performance: https://nnethercote.github.io/perf-book/
Little book of Rust macros: https://danielkeep.github.io/tlborm/book/
Rust WASM: https://rustwasm.github.io/docs/book/
Embedded Rust: https://rust-embedded.github.io/book/
Rust by example: https://doc.rust-lang.org/stable/rust-by-example/
Rust design patterns: https://rust-unofficial.github.io/patterns/
Rust API guidelines: https://rust-lang.github.io/api-guidelines/
Rust RFCs: https://rust-lang.github.io/rfcs/
and less general purpose:
Amethyst game engine: https://book.amethyst.rs/stable/
intermezzOS OS learning: http://intermezzos.github.io/book/second-edition/
mdBook docs: https://rust-lang.github.io/mdBook/