Merge pull request AmruthPillai#527 from lpmi-13/add_info_to_readme

add information on setting up firebase to the readme

README.md

@@ -100,6 +100,10 @@ npm install
 
 3. Create a `.env` file and fill it with your Firebase credentials
 
+You can get these by setting up a firebase web app [here](https://console.firebase.google.com/u/0/).
+
+Also note that you'll need to set up a Realtime Database, *not* a Firestore Database, to get the correct value for `FIREBASE_DATABASEURL`. Be sure to set it to test mode so you can read/write data. Just remember to either revert these or remove the database after your testing is completed.
+
 ```
 FIREBASE_APIKEY=""
 FIREBASE_APPID=""