Add panning and zooming on the playground, so you understand how to do it

**Is your feature request related to a problem? Please describe.**
The text in the Don Quijote is unreadable, and I don't know how to zoom, or add the zoom feature.

**Describe the solution you'd like**
Add pan and zoom to the playground examples, so you understand how to do it.

**Describe alternatives you've considered**
None.

**Additional context**

The issue names the playground examples and the Don Quijote text but no files or tests. Start by locating the playground example that renders this text and inspect the existing example structure; done means the example supports both panning and zooming so the text can be read and the interaction is demonstrated.

Written by the indexing model from the issue text.