fix link

Author: timdeschryver

aspnetcore/fundamentals/openapi/aspnetcore-openapi.md

@@ -227,7 +227,7 @@ In order to restrict these code paths from being invoked by the build-time gener
 
 :::code language="csharp" source="~/fundamentals/openapi/samples/9.x/AspireApp1/AspireApp1.Web/Program.cs" highlight="5-8":::
 
-<!--keep-->[AddServiceDefaults](https://source.dot.net/#TestingAppHost1.ServiceDefaults/Extensions.cs,0f0d863053754768,references) Adds common .NET Aspire services such as service discovery, resilience, health checks, and OpenTelemetry.
+[AddServiceDefaults](https://source.dot.net/#TestingAppHost1.ServiceDefaults/Extensions.cs,0f0d863053754768,references)<!--keep--> adds common .NET Aspire services such as service discovery, resilience, health checks, and OpenTelemetry.
 
 ## Trimming and Native AOT