Issue #3207452 by brianperry, aroseman18, hedrickbt: Create React Example

Closes #3207452

stories/docs/05-showcase.stories.mdx

@@ -11,6 +11,14 @@ Examples of how these components have been remixed and repurposed.
 [Repository](https://github.com/aroseman/gdwc-react-demo) /
 [Live Gitpod Environment](https://gitpod.io/#https://github.com/aroseman/gdwc-react-demo/)
 
+<iframe
+  src="https://codesandbox.io/embed/github/aroseman/gdwc-react-demo/tree/main/?fontsize=14&hidenavigation=1&theme=dark&view=preview"
+  style={{ width: '100%', height: '500px' }}
+  title="react-component-demo"
+  allow="accelerometer; ambient-light-sensor; camera; encrypted-media; geolocation; gyroscope; hid; microphone; midi; payment; usb; vr; xr-spatial-tracking"
+  sandbox="allow-forms allow-modals allow-popups allow-presentation allow-same-origin allow-scripts"
+></iframe>
+
 ## With Other Web Component Libraries
 
 <iframe