update .gitignore
update .gitignore

RobotlegsJS/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi,GoodgameStudios/RobotlegsJS-Pixi,GoodgameStudios/RobotlegsJS-Pixi,RobotlegsJS/RobotlegsJS-Pixi