Update AUTHORS.rst

Author: NGC

AUTHORS.rst

@@ -5,6 +5,7 @@ All contributors (alphabetical last name):
 * Elise Darragh-Ford (`@edrragh <https://github.com/edarragh>`_)
 * Hayden Foote (`@hfoote <https://github.com/hfoote>`_)
 * Nico Garavito Camargo (`@nico <https://github.com/jngaravitoc>`_) 
+* Sóley Hyman (`@soleyhyman <https://github.com/soleyhyman>`_) 
 * Mike Petersen (`@Michael-Petersen <https://github.com/michael-petersen>`_) 
 * Adrian Price-Whelan (`@adrn <https://github.com/adrn>`_)