Add to contributors (#863)
Add to contributors (#863)

* add Alaa El Jawad and Ian McElroy to contributors

* sort alphabetically

* keep original format

Co-authored-by: Alaa <8fe8bd3a2ed1bf0f48a4d7ef44d6f60e6801dd28@gmail.com>
RobotWebTools/rclnodejs,RobotWebTools/rclnodejs,RobotWebTools/rclnodejs,RobotWebTools/rclnodejs,RobotWebTools/rclnodejs