Update README.md

Author: niemyjski

README.md

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 # Exceptionless.RandomData
-[![Build status](https://ci.appveyor.com/api/projects/status/jiw0i4c33c70ofqq?svg=true)](https://ci.appveyor.com/project/Exceptionless/exceptionless-randomdata) [![NuGet Version](http://img.shields.io/nuget/v/Exceptionless.RandomData.svg?style=flat)](https://www.nuget.org/packages/Exceptionless.RandomData/) [![NuGet Downloads](http://img.shields.io/nuget/dt/Exceptionless.RandomData.svg?style=flat)](https://www.nuget.org/packages/Exceptionless.RandomData/) [![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/exceptionless/Discuss)
+[![Build status](https://ci.appveyor.com/api/projects/status/jiw0i4c33c70ofqq/branch/master?svg=true)](https://ci.appveyor.com/project/Exceptionless/exceptionless-randomdata) [![NuGet Version](http://img.shields.io/nuget/v/Exceptionless.RandomData.svg?style=flat)](https://www.nuget.org/packages/Exceptionless.RandomData/) [![NuGet Downloads](http://img.shields.io/nuget/dt/Exceptionless.RandomData.svg?style=flat)](https://www.nuget.org/packages/Exceptionless.RandomData/) [![Gitter](https://badges.gitter.im/Join Chat.svg)](https://gitter.im/exceptionless/Discuss)
 
 Utility class to easily generate random data. This makes generating good unit test data a breeze!