1：增加组件功能描述。

Author: guiying712

README.md

@@ -23,4 +23,20 @@ Android项目组件化示例代码
 
 ### common组件功能：
 1. common组件是基础库，添加一些公用的类；
-2. 例如：网络请求、图片加载、工具类、base类等等；
+2. 例如：网络请求、图片加载、工具类、base类等等；
+
+## License
+
+    Copyright 2017 guiying712, AndroidModulePattern Open Source Project
+
+    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.