Typo in link

Author: rougier

README.md

@@ -1,7 +1,6 @@
 ### From Python to Numpy
 Copyright (c) 2017 Nicolas P. Rougier  
-**License**: [Creative Commons Attribution 4.0 International (CC BY-NC-SA 4.0)]
-(https://creativecommons.org/licenses/by-nc-sa/4.0/).  
+**License**: [Creative Commons Attribution 4.0 International (CC BY-NC-SA 4.0)](https://creativecommons.org/licenses/by-nc-sa/4.0/).  
 **Website**: http://www.labri.fr/perso/nrougier/from-python-to-numpy
 
 There are already a fair number of books about NumPy