Update LICENSE.md

Author: ThunderMat

LICENSE.md

@@ -1,4 +1,10 @@
+License free download.
+
 If you find this repository helpful in your activities and publications, please consider citing our book:
 ```
 Rossi M., Toscani N., Mauri M., Castelli-Dezza F., "Introduction to Microcontroller Programming for Power Electronics Control Applications: Coding with MATLAB and Simulink" (1st ed.) 2021, CRC Press. https://doi.org/10.1201/9781003196938
-```
+```
+
+Mattia Rossi  
+Politecnico di Milano  
+mattia.rossi@polimi.it