Annotate example for using Tldraw component in a scrollable container (#2452)

Annotate example for using Tldraw component in a scrollable container

### Change Type

- [ ] `patch` — Bug fix
- [ ] `minor` — New feature
- [ ] `major` — Breaking change
- [ ] `dependencies` — Changes to package dependencies[^1]
- [x] `documentation` — Changes to the documentation only[^2]
- [ ] `tests` — Changes to any test code only[^2]
- [ ] `internal` — Any other changes that don't affect the published
package[^2]
- [ ] I don't know

[^1]: publishes a `patch` release, for devDependencies use `internal`
[^2]: will not publish a new version

### Test Plan

1. Add a step-by-step description of how to test your PR here.
2.

- [ ] Unit Tests
- [ ] End to end tests

### Release Notes

- Annotate example for using Tldraw component in a scrollable container

apps/examples/src/examples/scroll/ScrollExample.tsx

@@ -19,3 +19,7 @@ export default function ScrollExample() {
 		</div>
 	)
 }
+
+/*
+This example shows how you can use the Tldraw component inside a scrollable container.
+*/