message: fix: fix file extension
diff: @@ -8,7 +8,7 @@ import Billboard from "../Billboard";
  import BillboardCollection from "../BillboardCollection";
  const center = Cartesian3.fromDegrees(-75.59777, 40.03883);
  -import exampleImg from "./assets/example.jpg";
  +import exampleImg from "./assets/example.png";
  export default () => {
  storiesOf("Billboard", module)
  