update readme

Author: biodunalfet

README.md

@@ -30,7 +30,8 @@ The minimum supported SDK version is 15
 
 Add the `READ_PHONE_PERMISSION` permission to your android manifest
 
-     <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
+     <uses-permission android:name="android.permission.READ_PHONE_STATE" />
+     <uses-permission android:name="android.Manifest.permission.READ_PHONE_STATE" />
 
 
 > **REQUIRED PERMISSION**