Merge pull request #169 from zainfathoni/master

add: Enable Cloud Firestore step

Author: nicolasgarnier

firestore/README.md

@@ -13,6 +13,7 @@ Follow these steps to setup and run the quickstart:
 
  1. Create a Firebase project in the [Firebase Console](https://console.firebase.google.com).
  1. In the Firebase console, enable Anonymous authentication on your project by doing: **Authentication > SIGN-IN METHOD > Anonymous > Enable > SAVE**
+ 1. In the Firebase console, enable Cloud Firestore on your project by doing: **Database > TRY FIRESTORE BETA > ENABLE**
  1. Copy/Download this repo and open this folder in a Terminal.
  1. Install the Firebase CLI if you do not have it installed on your machine:
     ```bash