update authors

README.md

@@ -126,6 +126,7 @@ on Ubuntu 18.04.4 LTS.
 - Kais Klai (University of Paris 13, Sorbonne Paris Cite CNRS UMR 7030 LIPN
 - Chiheb Ameur Abid (Faculty of Sciences of Tunis, University of Tunis El Manar, 2092, Tunis, Tunisia)
 - Jaime Arias (University of Paris 13, Sorbonne Paris Cite CNRS UMR 7030 LIPN)
+- Sami Evangelista (University of Paris 13, Sorbonne Paris Cite CNRS UMR 7030 LIPN)
 
 ## Abstract
 
@@ -141,4 +142,4 @@ propositions involved in the formula to be checked could be either
 state-based or event-based propositions.
 
 We have implemented the proposed model checker within a C++ prototype and
-compared our preliminary results with the state of the art model checkers.
+compared our preliminary results to LTSmin model checker.