CONTRIBUTORS

--- a/CONTRIBUTORS	Wed Jan 20 19:19:55 2016 +0100
+++ b/CONTRIBUTORS	Wed Jan 20 20:19:05 2016 +0100
@@ -3,6 +3,10 @@
 listed as an author in one of the source files of this Isabelle distribution.
 
 
+Contributions to this Isabelle version
+--------------------------------------
+
+
 Contributions to Isabelle2016
 -----------------------------