Contributing
===
Contributions are welcome from everyone. Submit a pull request, an issue, or just add comments to an
existing item. The [International Bureau of Weights and Measures][BIPM] is an international
standards organization that publishes the [SI Brochure][brochure]. This document defines the [SI]
and can be used as a comprehensive reference for changes to `uom`. Conversion factors for non-SI
units can be found in NIST [Special Publication 811][nist811].

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in
the work by you, as defined in the Apache-2.0 license, shall be dual licensed as below, without any
additional terms or conditions.

### License
Licensed under either of

 * Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
   <https://www.apache.org/licenses/LICENSE-2.0>)
 * MIT license ([LICENSE-MIT](LICENSE-MIT) or <https://opensource.org/licenses/MIT>)

at your option.

[BIPM]: https://www.bipm.org/en/about-us/
[brochure]: https://www.bipm.org/en/publications/si-brochure/
[si]: https://jcgm.bipm.org/vim/en/1.16.html
[nist811]: https://www.nist.gov/pml/nist-guide-si-appendix-b9-factors-units-listed-kind-quantity-or-field-science