Added badges to the Readme.

Author: Steven Atkinson

README.md

@@ -1,2 +1,6 @@
+[![Build status](https://ci.appveyor.com/api/projects/status/b31xkmhnb0hki188?svg=true)](https://ci.appveyor.com/project/mrstebo/requestlogger-serilog)
+[![MyGet Prerelease](https://img.shields.io/myget/mrstebo/v/RequestLogger.Serilog.svg?label=MyGet_Prerelease)](https://www.myget.org/feed/mrstebo/package/nuget/RequestLogger.Serilog)
+[![NuGet](https://img.shields.io/nuget/v/RequestLogger.Serilog.svg)](https://www.nuget.org/packages/RequestLogger.Serilog/)
+
 # RequestLogger.Serilog
 RequestLogger that can be used with Serilog.