Update README.md

README.md

 `camera` -> `android.permission.CAMERA`
 `microphone` -> `android.permission.RECORD_AUDIO`
 `photo` -> `android.permission.READ_EXTERNAL_STORAGE`
+`storage` -> `android.permission.READ_EXTERNAL_STORAGE`
 `contacts` -> `android.permission.READ_CONTACTS`
 `event` -> `android.permission.READ_CALENDAR`
 
 A: starting with xcode 8, you need to add permission descriptions. see iOS notes for more details. Thanks to @jesperlndk for discovering this.
 
 #### Q: iOS - app crashes when I change permissions from settings
-A: This is normal. iOS restarts your app when your privacy settings change. Just google "ios crash permission change"
+A: This is normal. iOS restarts your app when your privacy settings change. Just google "ios crash permission change"