[docs] Update docs to match the published version.

We need to use relative paths in learn.microsoft.com links.

Author: rolfbjarne

docs/building-apps/build-properties.md

@@ -505,7 +505,7 @@ application size.
 Default: set to `false` when `Optimize` is set to `true` (which is the default
 for `Release` builds), unless `$(EnableDiagnostics)` is enabled.
 
-[eventsource]: https://learn.microsoft.com/dotnet/core/diagnostics/eventsource
+[eventsource]: /dotnet/core/diagnostics/eventsource
 
 ## GenerateApplicationManifest
 
@@ -714,7 +714,7 @@ application size.
 Default: set to `false` when `Optimize` is set to `true` (which is the default
 for `Release` builds), unless `$(EnableDiagnostics)` is enabled.
 
-[dotnetmetrics]: https://learn.microsoft.com/dotnet/core/diagnostics/metrics
+[dotnetmetrics]: /dotnet/core/diagnostics/metrics
 
 ## MmpDebug