加上版权和文档

Author: lindexi

LICENSE

@@ -0,0 +1,21 @@
+MIT License
+
+Copyright (c) 2020-2021 dotnet campus
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.

README.md

@@ -75,4 +75,14 @@ void Foo(DocumentFormat.OpenXml.Drawing.Point2DType point)
 # Thanks
 
 - [OfficeDev/Open-XML-SDK: Open XML SDK by Microsoft](https://github.com/OfficeDev/Open-XML-SDK/ )
-- [ironfede/openmcdf: Microsoft Compound File .net component - pure C# - NET Standard 2.0](https://github.com/ironfede/openmcdf )
+- [ironfede/openmcdf: Microsoft Compound File .net component - pure C# - NET Standard 2.0](https://github.com/ironfede/openmcdf )
+
+# Contributing
+
+[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-brightgreen.svg?style=flat-square)](https://github.com/dotnet-campus/DocumentFormat.OpenXml.Extensions/pulls)
+
+If you would like to contribute, feel free to create a [Pull Request](https://github.com/dotnet-campus/DocumentFormat.OpenXml.Extensions/pulls), or give us [Bug Report](https://github.com/dotnet-campus/DocumentFormat.OpenXml.Extensions/issues/new).
+
+# License
+
+[![](https://img.shields.io/badge/License-MIT-blue?style=flat-square)](LICENSE)

README.zh-cn.md

@@ -83,4 +83,12 @@ void Foo(DocumentFormat.OpenXml.Drawing.Point2DType point)
 # 感谢
 
 - [OfficeDev/Open-XML-SDK: Open XML SDK by Microsoft](https://github.com/OfficeDev/Open-XML-SDK/ )
-- [ironfede/openmcdf: Microsoft Compound File .net component - pure C# - NET Standard 2.0](https://github.com/ironfede/openmcdf )
+- [ironfede/openmcdf: Microsoft Compound File .net component - pure C# - NET Standard 2.0](https://github.com/ironfede/openmcdf )
+
+# 开源社区
+
+如果你希望参与贡献，欢迎 [Pull Request](https://github.com/dotnet-campus/DocumentFormat.OpenXml.Extensions/pulls)，或给我们 [报告 Bug](https://github.com/dotnet-campus/DocumentFormat.OpenXml.Extensions/issues/new)
+
+# 授权协议
+
+[![](https://img.shields.io/badge/License-MIT-blue?style=flat-square)](LICENSE)