Merge pull request #29250 from jalagari/main

Selector expect map not string

Author: k8s-ci-robot

content/en/docs/tasks/run-application/horizontal-pod-autoscale-walkthrough.md

@@ -397,7 +397,9 @@ section to your HorizontalPodAutoscaler manifest to specify that you need one wo
   external:
     metric:
       name: queue_messages_ready
-      selector: "queue=worker_tasks"
+      selector:
+        matchLabels:
+          queue: "worker_tasks"
     target:
       type: AverageValue
       averageValue: 30