Update README.md (typo)

README.md

@@ -11,7 +11,7 @@ by sending commands directly.
 
 This toolbox is being developed at RWTH Aachen University, Germany. It is the 
 successor of the 
-[RWTH - MATLAB NXT Toolbox](http://www.mindstorms.rwth-aachen.de/). Amongst other applications,
+[RWTH - Mindstorms NXT Toolbox](http://www.mindstorms.rwth-aachen.de/). Amongst other applications,
 it is used in the yearly lab exercise ["MATLAB meets LEGO Mindstorms"](https://mindstorms.lfb.rwth-aachen.de)
 by more than 400 students in the first year of their Eletrical Engineering curriculum at RWTH Aachen University