AUTHORS: Add Dmitry Sorokin

AUTHORS

@@ -19,6 +19,7 @@ blinkier <blinkiest@gmail.com>
 Peter Stuge <peter@stuge.se>
 Paul Sheppard <shepsoft@gmail.com>
 Vladimir Strinski <vstrinski@nanofury.com>
+Dmitry Sorokin <asfins@gmail.com>
 Jason Snell <abysss@gmail.com>
 Mark Crichton <crichton@gmail.com>
 Zefir Kurtisi <zefir.kurtisi@gmail.com>