Add Théophile Bastian to CREDITS

CREDITS

@@ -22,6 +22,7 @@ This file lists people who have contributed to babeld (in alphabetical order):
     Matthieu Boutier              <boutier at irif dot fr>
     Sawssen Hadded                <saw dot hadded at gmail dot com>
     Stephane Glondu               <steph at glondu dot net>
+    Théophile Bastian             <theophile dot bastian at ens dot fr>
     Thomas Petazzoni              <thomas dot petazzoni at free-electrons dot com>
     Toke Høiland-Jørgensen        <toke at toke dot dk>
     Vincent Gross                 <dermiste at screwball-coders dot net>