Merge pull request #43808 from morhook/patch-1

Add a clarification for autoscaling on minikube

Author: k8s-ci-robot

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

@@ -50,6 +50,12 @@ new kinds of resource that represent metric readings.
 To learn how to deploy the Metrics Server, see the
 [metrics-server documentation](https://github.com/kubernetes-sigs/metrics-server#deployment).
 
+If you are running {{< glossary_tooltip term_id="minikube" >}}, run the following command to enable metrics-server:
+
+```shell
+minikube addons enable metrics-server
+```
+
 <!-- steps -->
 
 ## Run and expose php-apache server