Update README.md

Author: rdegnan

README.md

@@ -3,5 +3,5 @@ An implementation of RSocket for .NET.
 
 ## Builds
 [![Build Status](https://travis-ci.org/rsocket/rsocket-net.svg?branch=master)](https://travis-ci.org/rsocket/rsocket-net)
-[![NuGet Version](https://badge.fury.io/nu/<repo>.svg)](https://badge.fury.io/nu/RSocket.Core)
+[![NuGet Version](https://badge.fury.io/nu/RSocket.Core.svg)](https://badge.fury.io/nu/RSocket.Core)
 Releases are available via NuGet.