- crates.io
- documentation comments
    ///
    cargo doc
    # Panics
    # Errors
    # Safety
        unsafe

    //!
    mod, pub, use
    use art::some_module::another_module::UsefulType;
    ->
    use art::UsefulType;
    pub use (link)
- create account (crates.io)
  - account
  - save API token
  - crate use special name
  - fill license, description
  - valid email
  - commit modification
  - cargo publish