message: react demo works!
diff: @@ -8,7 +8,7 @@ function App() {
  let pptx = new pptxgen();
  console.log(`pptx.version = ${pptx.version}`);
  let slide = pptx.addSlide();
  - slide.addText({ text: "React Demo!", options: { x: 1, y: 1, fontSize: 36 } });
  + slide.addText("React Demo!", { x: 1, y: 1, fontSize: 36 });
  pptx.writeFile("react-demo.pptx");
  }
  