message: Fix Figma embedded view width at design system example doc
diff: The app that rendered design system tokens (e.g. typings, spaces, icons). Every design token wrapped to Figma component. Uses flex layout.
  -<iframe style="border: none;" width="800" height="450" src="https://www.figma.com/embed?embed_host=share&url=https%3A%2F%2Fwww.figma.com%2Ffile%2Fo4hwvWCXbxzOfbYIgAhPeP%2Freact-figma-design-system%3Fnode-id%3D112%253A83" allowfullscreen></iframe>
  +<iframe style="border: none;" width="770" height="450" src="https://www.figma.com/embed?embed_host=share&url=https%3A%2F%2Fwww.figma.com%2Ffile%2Fo4hwvWCXbxzOfbYIgAhPeP%2Freact-figma-design-system%3Fnode-id%3D112%253A83" allowfullscreen></iframe>
  * [Live demo](https://www.figma.com/file/o4hwvWCXbxzOfbYIgAhPeP/react-figma-design-system)
  * [How to run](../../contributing.md#running-examples)
  