doc: update LICENSE and README

Author: CSUwangj

LICENSE

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+MIT License
+
+Copyright (c) 2019 望将
+
+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

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+# md2docx-csharp
+
+使用C#开发的md2docx工具。
+
+## TBD
+
+这个项目是[CSUIS-md2docx](https://github.com/CSUwangj/CSUIS-md2docx)的一个子项目，目前还在开发中，在功能达到完善之前不会进一步更新文档。
+
+目前进度如下：
+
+- [x] 根据YAML头输出一个有姓名等内容的基本文档
+- [x] 标题、正文
+- [x] 摘要、关键词、结束语
+- [x] 页边距
+- [ ] 参考文献
+- [ ] 封面
+- [ ] 目录
+
+以上为我心中该项目demo的应有功能，在此之前除了更新进度外不会做进一步的文档更新。
+
+- [ ] 页眉
+- [ ] 页脚
+- [ ] 图片
+- [ ] 表格