We noticed that the ["Using Apollo with TypeScript"](https://www.apollographql.com/docs/react/development-testing/static-typing/#usequery) documentation makes no mention of `TypeDocumentNode`, which we consider a best practice. It would be nice to have somewhere to point to in the official docs. In this PR I borrowed an existing blurb from the CHANGELOG and adapted the "Typing hooks" `useQuery()` example for my purposes. Thanks!