React.forwardRef example

```ts
type RenderedViewProps = { url: string };
const RenderedView: React.FC = React.forwardRef((props, ref) => {
return
});
```

The issue contains a TypeScript React.forwardRef example but names no documentation file, section, test, or requested wording. First inspect the book's React and ref-related documentation entry points to determine whether this example belongs there; done should mean the intended example is documented and renders or type-checks as expected.

Written by the indexing model from the issue text.