Add a demo page

[fidian]

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Is your feature request related to a problem? Please describe.

I'm evaluating various similar solutions. The README is fairly light on what the module does and the purpose of the different components. A demonstration page would be extremely helpful.

Describe the solution you'd like

Stackblitz or codesandbox would be ideal so I can see it working and quickly toggle to the source.

Describe alternatives you've considered

I was thinking of reading the source code in order to understand this component better. Haven't done that quite yet.

Additional context

None.