Update README.md

README.md

@@ -10,5 +10,12 @@ This project brings together various information and exercise materials on 3D ci
 
 Models, workflows and examples are language-neutral and are therefore made available in the repository in this gitlab project. In the wiki, reference is made to the repository at the appropriate place.
 
+# License
+
+This work is licensed under a [Creative Commons Attribution 4.0 International License - CC BY 4.0](https://creativecommons.org/licenses/by/4.0/legalcode) [![CC BY 4.0][cc-by-shield]][cc-by]
+
+[cc-by]: https://creativecommons.org/licenses/by/4.0/legalcode
+[cc-by-shield]: https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg
+