Update README.md

README.md

@@ -8,3 +8,20 @@ A Draggable PhotoView Like Wechat，高仿微信可拖拽返回PhotoView
 基于 [PhotoView](https://github.com/chrisbanes/PhotoView)
 
 
+
+
+# License
+
+    Copyright 2016 androidwing1992
+
+    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.