Update README.md

Author: cdervis

README.md

@@ -9,8 +9,10 @@
 You can use SharpConfig to read, modify and save configuration files and streams, in either text or binary format.
 
 [![Homepage](https://img.shields.io/badge/Homepage-blue)](https://dervis.de/sharpconfig)
+
 [![NuGet Version](https://img.shields.io/nuget/v/sharpconfig)](https://www.nuget.org/packages/sharpconfig) 
 [![NuGet Downloads](https://img.shields.io/nuget/dt/sharpconfig)](https://www.nuget.org/packages/sharpconfig)
+[![.NET](https://github.com/cdervis/SharpConfig/actions/workflows/dotnet.yml/badge.svg)](https://github.com/cdervis/SharpConfig/actions/workflows/dotnet.yml)
 
 </div>