Add sitnarf as a contributor

Author: zedr

CONTRIBUTORS

@@ -3,4 +3,5 @@ Zachary Anglin <zach@anglin.com>
 AirbusDriver <https://github.com/AirbusDriver>
 Micheal <https://github.com/mpkocher>
 Erik OShaughnessy <https://github.com/JnyJny>
-Mukhammad Karimov <https://github.com/heykarimoff>
+Mukhammad Karimov <https://github.com/heykarimoff>
+sitnarf <https://github.com/sitnarf>