Update file README.md

README.md

-[![CC BY 4.0][cc-by-shield]][cc-by]
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+[![CC BY 4.0][cc-by-shield]][cc-by]  
+[![CC BY NC 4.0][cc-by-nc-shield]][cc-by-nc] lecture only 
 
 # Initiation à Linux/Unix
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 [cc-by]: http://creativecommons.org/licenses/by/4.0/
 [cc-by-shield]: https://img.shields.io/badge/License-CC%20BY%204.0-lightgrey.svg
+[cc-by-nc-sa]: https://creativecommons.org/licenses/by-nc-sa/4.0/
+[cc-by-nc-sa-shield]: https://img.shields.io/badge/License-CC%20BY%20NC%20SA%204.0-lightgrey.svg
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 ## Acknowledgment
 
-This course is build on top of a course made by Jacques Dainat ([git repo](https://forge.ird.fr/mivegec/dainat/malbec-unix-basics) / [website](https://mivegec.pages.ird.fr/dainat/malbec-unix-basics/)).
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+The lecture is build ont top of a course made by [i-Trop](https://bioinfo.ird.fr/index.php/en/front-page-2/) (The [IRD](https://en.ird.fr/) Bioinformatics Platform) and Southgreen ([website](https://southgreenplatform.github.io/trainings//linux/)).  
+The training part is build on top of a course made by Jacques Dainat ([git repo](https://forge.ird.fr/mivegec/dainat/malbec-unix-basics) / [website](https://mivegec.pages.ird.fr/dainat/malbec-unix-basics/)).
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