Update last

Author: chirambaht

README.md

@@ -4,6 +4,6 @@ An application that is designed to take in orders from users in an office to all
 This application was made by following a tutorial by [The Net Ninja](https://www.youtube.com/c/TheNetNinja) on using [Flutter and Firebase](https://www.youtube.com/playlist?list=PL4cUxeGkcC9j--TKIdkb3ISfRbJeJYQwC).
 ## What I learnt
 Having grasped the basics from my [World Time App](https://github.com/chirambaht/Flutter-Example-World-Time-App), I added to my knowledge:
-- Firebase usage (Firestore and Authentication)
+- [Firebase](https://firebase.google.com/) usage (Firestore and Authentication)
 - Streams and Providers to constantly pass data that as it is updated in real time
 - Modelling for mobile applications