Add myself to AUTHORS

AUTHORS

@@ -152,3 +152,5 @@ a license to everyone to use it as detailed in LICENSE.)
 * Hamish Willee <hamishwillee@gmail.com> (copyright owned by Mozilla Foundation)
 * Sylvain Chevalier <sylvain.chevalier@gmail.com>
 * Nathan Ross <nross.se@gmail.com>
+* Mark Logan <mark@artillery.com> (copyright owned by Artillery Games, Inc.)
+