Update README.md

README.md

@@ -57,11 +57,17 @@ Please cite the ISPD 17 paper:
 
 G. Flach, M. Fogaça, J. Monteiro, M. Johann and R. Reis, ["Rsyn: An Extensible Physical Synthesis Framework"](http://doi.acm.org/10.1145/3036669.3038249), Proceedings of the 2017 ACM on International Symposium on Physical Design (ISPD), pp. 33-40, Portland, Oregon, USA 2017. 
 
-## Creators
+## Contributors
+
+#### Creators
 - [Guilherme Flach](mailto:[email protected] )
 - [Mateus Fogaça](mailto:[email protected])
 - [Jucemar Monteiro](mailto:[email protected])
 
+#### Advisors
+- [Marcelo Johann](mailto:[email protected])
+- [Ricardo Reis](mailto:[email protected])
+
 #### Contributors
 - [Henrique Placido](mailto:[email protected])
 - [Isadora Oliveira](mailto:[email protected])