docs: fix incorrect file path
@@ -126,9 +126,10 @@ deleted until you remove the finalizer (ie, after your cleanup logic has success
**Example:**
-The following is a snippet from the controller file under `pkg/controller/memcached/memcached_controller.go`
+The following is a snippet from a theoretical controller file `controllers/memcached_controller.go`
+that implements a finalizer handler:
-```Go
+```go
import (
...
"sigs.k8s.io/controller-runtime/pkg/controller/controllerutil"
