Update README.md (#241)

android spelling mistake in line 258 and 260.

Author: novamaster-git

README.md

@@ -255,9 +255,9 @@ Note: iOS only supports `auto` currently.
 |  :---  |   :---:  |  :---:  |     :---    |
 | 'Proximity'   | :smile: | :smile: | proximity sensor detected changes.<br>data: `{'isNear': boolean}` |
 | 'WiredHeadset'| :smile: | :smile:  | fire when wired headset plug/unplug<br>data: `{'isPlugged': boolean, 'hasMic': boolean, 'deviceName': string }` |
-| 'NoisyAudio'  | :smile: | :rage: | see [andriod doc](http://developer.android.com/reference/android/media/AudioManager.html#ACTION_AUDIO_BECOMING_NOISY).<br>data: `null` |
+| 'NoisyAudio'  | :smile: | :rage: | see [android doc](http://developer.android.com/reference/android/media/AudioManager.html#ACTION_AUDIO_BECOMING_NOISY).<br>data: `null` |
 | 'MediaButton' | :smile: | :rage: | when external device controler pressed button. see [android doc](http://developer.android.com/reference/android/content/Intent.html#ACTION_MEDIA_BUTTON) <br>data: `{'eventText': string, 'eventCode': number }` |
-| 'onAudioFocusChange' | :smile: | :rage: | see [andriod doc](http://developer.android.com/reference/android/media/AudioManager.OnAudioFocusChangeListener.html#onAudioFocusChange(int)) <br>data: `{'eventText': string, 'eventCode': number }` |
+| 'onAudioFocusChange' | :smile: | :rage: | see [android doc](http://developer.android.com/reference/android/media/AudioManager.OnAudioFocusChangeListener.html#onAudioFocusChange(int)) <br>data: `{'eventText': string, 'eventCode': number }` |
 
 **NOTE: platform OS always has the final decision, so some toggle API may not work in some cases
 be careful when customizing your own behavior**