Merge pull request #27 from AkkaNetContrib/nuget-badge

Added nuget badge

Author: alexvaluyskiy

README.md

@@ -1,5 +1,5 @@
 # Akka.TestKit.Nunit
 
-This is the NUnit TestKit integration plugin for Akka.NET. Please check out our documentation for examples on how to create and run tests using this plugin.
+[![NuGet Version](http://img.shields.io/nuget/v/Akka.TestKit.NUnit.svg?style=flat)](https://www.nuget.org/packages/Akka.TestKit.NUnit/)
 
-Currently targetting both Nunit v2.6.4 and v3.4.1.
+This is the NUnit TestKit integration plugin for Akka.NET. Please check out our documentation for examples on how to create and run tests using this plugin.