Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)

This is a human-readable summary of (and not a substitute for) the license.
Disclaimer: This license is not a software license in the strict Open Source sense, 
but it is used here to protect the commercial rights of the project.

You are free to:
- Share — copy and redistribute the material in any medium or format
- Adapt — remix, transform, and build upon the material

Under the following terms:
- Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. 
- NonCommercial — You may not use the material for commercial purposes. 
- ShareAlike — If you remix, transform, or build upon the material, you must distribute your contributions under the same license as the original.