Console log syntax in Firestore getDocs snippet results in [object Object] output

https://github.com/firebase/snippets-web/blame/467eaa165dcbd9b3ab15711e76fa52237ba37f8b/snippets/firestore-next/test-firestore/get_all_users.js#L8-L13

File:
[snippets/firestore-next/test-firestore/get_all_users.js](https://github.com/firebase/snippets-web/blame/467eaa165dcbd9b3ab15711e76fa52237ba37f8b/snippets/firestore-next/test-firestore/get_all_users.js#L8-L13)

Issue:

console.log(`${doc.id} => ${doc.data()}`);

currently outputs:

docId => [object Object]

Suggested Fix:

Use a comma-separated console.log to avoid [object Object]:

console.log(doc.id, "=>", doc.data());