Update AUTHORS.rst

Author: lafrech

AUTHORS.rst

@@ -92,3 +92,4 @@ Contributors (chronological)
 - Karthik Ramadugu `@karthiksai109 <https://github.com/karthiksai109>`_
 - Amir Kahriman `@kingdomOfIT <https://github.com/kingdomOfIT>`_
 - Alex Chen `@alexchen-sys <https://github.com/alexchen-sys>`_
+- Bing Gao `@binggao1230 <binggao1230>`_