Add extra build step

Author: feliwir

.github/workflows/ci.yml

@@ -21,6 +21,9 @@ jobs:
       with:
         dotnet-version: 5.0.202
 
+    - name: Build
+      run: dotnet build src --configuration Release
+
     - name: Test
       run: dotnet test src --configuration Release
 

README.md

@@ -3,6 +3,7 @@
 ## Changes
 
 - Use SourceGenerators to create LUTs
+- Change target framework to .NET Standard 2.0
 
 ## Original Text