Added gnbsim support in release document

Change-Id: Ic3129914256172a11d9fb6ac192a269e43b9b9cf
diff --git a/dict.txt b/dict.txt
index f75ff96..ae926e1 100644
--- a/dict.txt
+++ b/dict.txt
@@ -1,3 +1,4 @@
+gNBSim
 eb
 152a5eb
 omecproject