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README.md

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 A minimal Python library to draw customized maps from [OpenStreetMap](https://www.openstreetmap.org/#map=12/11.0733/106.3078) created using the [osmnx](https://github.com/gboeing/osmnx), [matplotlib](https://matplotlib.org/), [shapely](https://shapely.readthedocs.io/en/stable/index.html) and [vsketch](https://github.com/abey79/vsketch) libraries.
 
+[![CC BY NC 4.0][cc-by-nc-shield]](cc-by-nc)
+
+This work is licensed under a
+[Creative Commons Attribution-NonCommercial 4.0 International](cc-by-nc).
+
+[![CC BY 4.0][cc-by-image]][cc-by]
+
+[cc-by]: http://creativecommons.org/licenses/by-nc/4.0/
+[cc-by-image]: https://i.creativecommons.org/l/by-nc/4.0/88x31.png
+[cc-by-nc-shield]: https://img.shields.io/badge/license-CC%20BY%20NC%204.0-lightgrey.svg
+
 - **Because of the recent episodes of plagiarism and refusal to credit this project in the NFT Community (Twitter profiles [AeternaCivitas](https://twitter.com/AeternaCivitas) and [geoartnft](twitter.com/geoartnft)) I have decided to change my license to Creative Commons (CC-BY-NC-4.0) which requires you to credit it everytime you use it and forbids you to use if for commercial purposes.**
 - **The printed message on the figures crediting OpenStreetMap and my repository, included by default, is mandatory.**
 - **I do not authorize people to sell NFTs using prettymaps and ask that you contact me if you know of someone who is doing it.**
-- **CREDIT OPEN SOURCE DEVELOPERS**
+- **CREDIT OPEN SOURCE DEVELOPERS!**
 
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