Update README.md

Author: quentinScript

README.md

@@ -11,6 +11,7 @@ A [Processing][] helper library and examples maintained by [Théoriz studio][] t
 Open [Processing][] and install the OscP5 and Augmenta library
 ```
 Sketch -> Import Library... -> Add Library -> OscP5
+Sketch -> Import Library... -> Add Library -> controlP5
 Sketch -> Import Library... -> Add Library -> Augmenta for Processing
 ```