Added build badge

Author: jzi96

README.md

@@ -2,6 +2,7 @@
 
 This repository contains a set of Code generators, see below.
 
+![.NET Core](https://github.com/jzi96/SourceCodeGenerators/workflows/.NET%20Core/badge.svg?branch=main)
 
 ## General Usage
 
@@ -107,4 +108,4 @@ Alternatively you can edit the project file and add the following code block.
 <ItemGroup>
   <AdditionalFiles Include="TT-FIX42.xml" />
 </ItemGroup>
-```
+```