Update LICENSE.txt

Author: cluon

LICENSE.txt

@@ -1,5 +1,5 @@
 The code in this repository code was Written by Gil Tene, Michael Barker,
-and Matt Warren, and released to the public domain, as explained at
+Matt Warren, and Philip Orwig, and released to the public domain, as explained at
 http://creativecommons.org/publicdomain/zero/1.0/
 
 For users of this code who wish to consume it under the "BSD" license