Adds Ionel Maries Cristian to AUTHORS

AUTHORS

@@ -42,6 +42,7 @@ Gunnlaugur Thor Briem <gunnlaugur@gmail.com>
 Hari <haridara@gmail.com>
 Harm Verhagen <harm.verhagen@gmail.com>
 Honza Kral <honza.kral@gmail.com>
+Ionel Maries Cristian <contact@ionelmc.ro>
 Jannis Leidel <jannis@leidel.info>
 Jason Baker <amnorvend@gmail.com>
 Jeff Balogh <me@jeffbalogh.org>