Update echoserver image in tutorial for multiarch

The previous version of the image did not support arm64. This one
supports amd64, arm, arm64, ppc64le, s390x on Linux, and amd64 on
multiple Windows versions.

Author: mtardy

content/en/docs/tutorials/hello-minikube.md

@@ -94,7 +94,7 @@ recommended way to manage the creation and scaling of Pods.
 Pod runs a Container based on the provided Docker image.
 
     ```shell
-    kubectl create deployment hello-node --image=registry.k8s.io/echoserver:1.4
+    kubectl create deployment hello-node --image=registry.k8s.io/e2e-test-images/agnhost:2.39 -- /agnhost netexec --http-port=8080
     ```
 
 2. View the Deployment: