add doc comments

Integration tests in Rust

Unit tests in Rust

Bary center implementation using parallel processing in Rust

Bary center implementation using iter() in Rust

Generic functions in Rust

Traits in Rust

implementing markup language in Rust

Match expressions in Rust

Enumerations in Rust

Structured data in Rust

shared and exclusive access in Rust

add dependencies with Cargo

First Rust project with documentation