Update name based on feedback (flutter#230)

Author: sethladd

packages/firebase_firestore/README.md

@@ -1,6 +1,6 @@
-# Firestore Plugin for Flutter
+# Cloud Firestore Plugin for Flutter
 
-A Flutter plugin to use the [Firestore API](https://firebase.google.com/docs/firestore/).
+A Flutter plugin to use the [Cloud Firestore API](https://firebase.google.com/docs/firestore/).
 
 For Flutter plugins for other Firebase products, see [FlutterFire.md](https://github.com/flutter/plugins/blob/master/FlutterFire.md).
 
@@ -10,8 +10,15 @@ For Flutter plugins for other Firebase products, see [FlutterFire.md](https://gi
 
 To use this plugin:
 
-1. Using the [Firebase Console](http://console.firebase.google.com/), add an Android app to your project: Follow the assistant, download the generated google-services.json file and place it inside android/app. Next, modify the android/build.gradle file and the android/app/build.gradle file to add the Google services plugin as described by the Firebase assistant. Ensure that your `android/build.gradle` file contains the `maven.google.com` as [described here](https://firebase.google.com/docs/android/setup#add_the_sdk).
-1. Using the [Firebase Console](http://console.firebase.google.com/), add an iOS app to your project: Follow the assistant, download the generated GoogleService-Info.plist file, open ios/Runner.xcworkspace with Xcode, and within Xcode place the file inside ios/Runner. Don't follow the steps named "Add Firebase SDK" and "Add initialization code" in the Firebase assistant.
+1. Using the [Firebase Console](http://console.firebase.google.com/), add an Android app to your project:
+Follow the assistant, download the generated google-services.json file and place it inside android/app. Next,
+modify the android/build.gradle file and the android/app/build.gradle file to add the Google services plugin
+as described by the Firebase assistant. Ensure that your `android/build.gradle` file contains the
+`maven.google.com` as [described here](https://firebase.google.com/docs/android/setup#add_the_sdk).
+1. Using the [Firebase Console](http://console.firebase.google.com/), add an iOS app to your project:
+Follow the assistant, download the generated GoogleService-Info.plist file, open ios/Runner.xcworkspace
+with Xcode, and within Xcode place the file inside ios/Runner. Don't follow the steps named
+"Add Firebase SDK" and "Add initialization code" in the Firebase assistant.
 1. Add `firebase_firestore` as a [dependency in your pubspec.yaml file](https://flutter.io/platform-plugins/).
 
 ## Usage
@@ -53,4 +60,4 @@ class BookList extends StatelessWidget {
 
 ## Getting Started
 
-See the `example` directory for a complete sample app using Firestore.
+See the `example` directory for a complete sample app using Cloud Firestore.