Update readme.source.md

Author: SimonCropp

readme.source.md

@@ -1,7 +1,7 @@
 # <img src='/src/icon.png' height='30px'> Verify
 
 [![Discussions](https://img.shields.io/badge/Verify-Discussions-yellow?svg=true&label=)](https://github.com/orgs/VerifyTests/discussions)
-[![Build status](https://ci.appveyor.com/api/projects/status/dpqylic0be7s9vnm/branch/main?svg=true)](https://ci.appveyor.com/project/SimonCropp/Verify)
+[![Build status](https://img.shields.io/appveyor/build/SimonCropp/verify)](https://ci.appveyor.com/project/SimonCropp/Verify)
 [![NuGet Status](https://img.shields.io/nuget/v/Verify.NUnit.svg?label=Verify.NUnit)](https://www.nuget.org/packages/Verify.NUnit/)
 [![NuGet Status](https://img.shields.io/nuget/v/Verify.Xunit.svg?label=Verify.Xunit)](https://www.nuget.org/packages/Verify.Xunit/)
 [![NuGet Status](https://img.shields.io/nuget/v/Verify.XunitV3.svg?label=Verify.XunitV3)](https://www.nuget.org/packages/Verify.XunitV3/)