update readme to reflect the @keegan-stoneware namespace
update readme to reflect the @keegan-stoneware namespace

keegan-stoneware/simple-app-message,keegan-lillo/simple-app-message,keegan-lillo/simple-app-message,keegan-lillo/simple-app-message,keegan-stoneware/simple-app-message,keegan-stoneware/simple-app-message,keegan-lillo/simple-app-message,keegan-stoneware/simple-app-message