Update Contribute/Architecture/Services documentation (#27722)

contribute/architecture/services.md

@@ -40,7 +40,7 @@ func init() {
 }
 ```
 
-`init` functions are only run whenever a package is imported, so we also need to import the package in the application. In the `server.go` file under `pkg/cmd/grafana-server`, import the package we just created:
+`init` functions are only run whenever a package is imported, so we also need to import the package in the application. In the `server.go` file under `pkg/server`, import the package we just created:
 
 ```go
 import _ "github.com/grafana/grafana/pkg/services/mysvc"