Update ReadMe.txt

Author: ShanguUncle

Readme/ReadMe.txt

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-====================UnityChatSDK========================
-�ص㣺
-1.��ƽ̨ Unity�༭����Android��IOS��Windows,UWP(Hololens & Surface)
-2.֧�ֶ�����Ƶ���ͣ��ɴ�������ͷ�����Unity Camera��Ⱦ���棨SDKע�����ã�
-3.�ӿڼ򵥣�������Ƶ�IJ�׽������뵥�����룬���㿪���߶Խ��Լ�������ӿ�
-4.֧��180P��320x180����360P��640x360����720P��1280x720����1080P��1920x1080)��Ƶ��ʽ
-5.�ɶ�̬������Ƶ��ѹ������
-
-========================����֧��=========================
-1.QQȺ 211031265
-2.�̳̣�https://blog.csdn.net/ShanGuUncle/article/details/81535884
-
-=====================�汾����5.1=======================
-1.�Ż�����Ƶ�IJ���
-2.�Ż��˶� Hololens��֧��
+Unity Video Chat SDK
+
+Unity Video Chat SDK, support UnityEditor,Android,IOS,Windows,UWP(Hololens).
+
+Support multiple video types,device camera and Unity Camera and custom Texture, support AR, MR mixed video.
+
+The interface is simple, the capture of audio and video and codec is separated separately, you can insert the sdk to your own network easily.
+
+====================Unity Video Chat SDK========================
+
+特点：
+
+1.跨平台 Unity编辑器，Android，IOS，Windows,UWP(Hololens & Surface)
+
+2.支持多种视频类型，可传输摄像头画面和Unity Camera渲染画面，支持AR、MR混合视频
+
+3.接口简单，将音视频的捕捉，编解码单独分离，方便开发者对接自己的网络接口
+
+4.支持180P（320x180）、360P（640x360）、720P（1280x720）、1080P（1920x1080)视频格式
+
+5.可动态设置视频的压缩质量
+
+========================技术支持=========================
+
+1.QQ群 211031265
+
+2.教程：https://blog.csdn.net/ShanGuUncle/article/details/81535884
+
+=====================版本更新记录=======================
+
+=====================版本更新5.3=======================
+
+1.增加自定义Video模式，可以传输Texture2D
+
+2.增加HoloLens holograme capture Demo
+
+=====================版本更新5.2=======================
+
+1.提升了编解码性能
+
+2.解决了不同设备摄像头旋转及镜像问题
+
+3.修改了Protobuf协议，提高了兼容性
+
+=====================版本更新5.1=======================
+
+1.优化了音频的播放
+
+2.优化了对 Hololens的支持