readme modifications, removed copyrights, fixed issue with install update test

Examples/CodePushDemoApp/CodePushDemoAppTests/ApplyUpdateTests/ApplyUpdateTestApp.js

@@ -1,11 +1,4 @@
 /**
- * Copyright (c) 2015-present, Facebook, Inc.
- * All rights reserved.
- *
- * This source code is licensed under the BSD-style license found in the
- * LICENSE file in the root directory of this source tree. An additional grant
- * of patent rights can be found in the PATENTS file in the same directory.
- *
  * @providesModule QueryUpdateTestApp
  */
 'use strict';