Update AUTHORS.md

Author: awinkler

AUTHORS.md

@@ -1,10 +1,11 @@
-Xpp was developed by Alexander W. Winkler mainly at the Agile and Dexterous
-Robotics Lab ETH Zurich. It is currently developed at the Robotics
-Systems Lab, ETH Zurich.
+Xpp was developed by Alexander W. Winkler mainly at the [Agile and Dexterous
+Robotics Lab](http://www.adrl.ethz.ch/doku.php). It is currently developed at the [Robotics
+Systems Lab](http://www.rsl.ethz.ch/).
 
 Initial contributors/input from:
- * Diego Pardo, Amazon Robotics
- * Michael Neunert, Google Deepmind
- * Carlos Mastalli, Italian Institute of Technology
+
+* Diego Pardo, Amazon Robotics
+* Michael Neunert, Google Deepmind
+* Carlos Mastalli, Laas CNRS
 
 See [github contributors](https://github.com/leggedrobotics/xpp/graphs/contributors) for further code contributors.