Update README.md

README.md

-# CAP 　　　　　　　　　　　　　　　　　　　　　　[中文](https://github.com/dotnetcore/CAP/blob/develop/README.zh-cn.md)
+# CAP 　　　　　　　　　　　　　　　　　　　　　　[中文](https://github.com/dotnetcore/CAP/blob/master/README.zh-cn.md)
 [![Travis branch](https://img.shields.io/travis/dotnetcore/CAP/master.svg?label=travis-ci)](https://travis-ci.org/dotnetcore/CAP)
 [![AppVeyor](https://ci.appveyor.com/api/projects/status/v8gfh6pe2u2laqoa/branch/master?svg=true)](https://ci.appveyor.com/project/yuleyule66/cap/branch/master)
 [![NuGet](https://img.shields.io/nuget/v/DotNetCore.CAP.svg)](https://www.nuget.org/packages/DotNetCore.CAP/)