Handle GUILD_ROLE_CREATE websocket events.

docs/api.rst

@@ -160,6 +160,13 @@ to handle it, which defaults to log a traceback and ignore the exception.
 
     :param server: The :class:`Server` that got created or deleted.
 
+.. function:: on_server_role_create(server, role)
+
+    Called when a :class:`Server` creates a new :class:`Role`.
+
+    :param server: The :class:`Server` that was created.
+    :param role: The :class:`Role` that was created.
+
 
 Utility Functions
 -----------------