App with Firebase Auth-Cloud Functions-Cloud Firestore Excersise on base of tutorial https://www.youtube.com/watch?v=aN1LnNq4z54&list=PL4cUxeGkcC9jUPIes_B8vRjn1_GaplOPQ
The Net Ninja Youtube Channel - https://www.youtube.com/channel/UCW5YeuERMmlnqo4oq8vwUpg