Update README.md

Author: venshine

README.md

@@ -105,6 +105,27 @@
         });
 ```
 
+## 参考
+* [官方Sample](https://github.com/googlesamples/android-MultiWindowPlayground)
+
+## About
+* Email：[email protected]
+
+## License
+    Copyright (C) 2016 [email protected]
+
+    Licensed under the Apache License, Version 2.0 (the "License");
+    you may not use this file except in compliance with the License.
+    You may obtain a copy of the License at
+    
+    http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+