Firebase added to project: Tutorials

Firebase. (2018). Add Firebase to Your Android Project  |  Firebase. [online] Available at: https://firebase.google.com/docs/android/setup?gclid=CjwKCAiA4vbSBRBNEiwAMorERySAeV_iicDNq_MqinjKVI3SXy96K7XkZUfL4MF9lv9ttq0qLWCmbRoCTxwQAvD_BwE [Accessed 16 Jan. 2018].

- Tutorials on how to add Firebase to the project.