Update readme.md

Author: guFalcon

readme.md

@@ -32,6 +32,7 @@
  ***************************************************************************/
 
 ```
+[![NuGet](https://img.shields.io/nuget/v/Nuget.Core.svg?maxAge=2592000)](https://www.nuget.org/packages/SplitStopWatch/)
 
 # General  
 
@@ -69,4 +70,4 @@ ssw.stop("stopped.");
 
 [homepage]: http://www.unterrainer.info
 [coding]: http://www.unterrainer.info/Home/Coding
-[github]: https://github.com/UnterrainerInformatik/splitstopwatch
+[github]: https://github.com/UnterrainerInformatik/splitstopwatch