message: Added missing AppLoading
diff: @@ -86,6 +86,7 @@ expo install expo-font
  *App.js* <br />
  ```js
  import React from 'react';
  +import { AppLoading } from 'expo';
  import { Container, Text } from 'native-base';
  import * as Font from 'expo-font';
  import { Ionicons } from '@expo/vector-icons';
  