[databases] firebase reference

[joeyklee]

TBH, I feel like firebase is all over the place. Maybe once you get a hang of the API its great, but all their tutorials feel chaotic 😬

https://firebase.google.com/docs/web/setup

example: https://github.com/firebase/quickstart-js/tree/master/functions

[joeyklee]

Flavio Copes has a great tutorial on this: https://flaviocopes.com/firebase-firestore/

[joeyklee]

This one too: https://flaviocopes.com/firebase-hosting/

[joeyklee]

closing this as this is now referenced in the "guides/database-services-guide.md"