License

This project is licensed under the MIT License - see the LICENSE.md file for details.

It means that:

If you use this package as a library without modifying it, there is no obligation regarding this license.
If you modify the source code of this package, you must keep the original copyright in the source code and add your own. The LICENSE file must also contain the original copyright (and the original MIT license notice if not sublicensed).
In any case, you can use this package in open source or closed source projects and for commercial or non-commercial purposes.