minikube 1.19.0 is namespace changed

ngress namespace is minikube 1.19.0 chage the status kube-system to ingress-nginx.

Since the output result has also changed, I decided to display only one line.

minikube 1.19.0 Upgrade ingress addon files according to upstream.

https://github.com/kubernetes/minikube/blob/master/CHANGELOG.md#version-1190-beta0---2021-04-05
kubernetes/minikube#10879

content/en/docs/tasks/access-application-cluster/ingress-minikube.md

@@ -44,22 +44,41 @@ This page shows you how to set up a simple Ingress which routes requests to Serv
 
 1. Verify that the NGINX Ingress controller is running
 
+    minikube version 1.18.1 or earlier
+
     ```shell
     kubectl get pods -n kube-system
     ```
 
+    minikube version 1.19.0 or later
+
+    ```shell
+    kubectl get pods -n ingress-nginx
+    ```
+
     {{< note >}}This can take up to a minute.{{< /note >}}
 
     Output:
 
+    minikube version 1.18.1 or earlier
+
     ```shell
     NAME                                        READY     STATUS    RESTARTS   AGE
     default-http-backend-59868b7dd6-xb8tq       1/1       Running   0          1m
     kube-addon-manager-minikube                 1/1       Running   0          3m
     kube-dns-6dcb57bcc8-n4xd4                   3/3       Running   0          2m
     kubernetes-dashboard-5498ccf677-b8p5h       1/1       Running   0          2m
     nginx-ingress-controller-5984b97644-rnkrg   1/1       Running   0          1m
-    storage-provisioner                         1/1       Running   0          2m
+    storage-provisioner                         1/1       Running 
+    ```
+
+    minikube version 1.19.0 or later
+
+    ```shell
+    NAME                                        READY   STATUS      RESTARTS   AGE
+    ingress-nginx-admission-create-ckgpj        0/1     Completed   0          15m
+    ingress-nginx-admission-patch-585xt         0/1     Completed   0          15m
+    ingress-nginx-controller-5d88495688-b4s8m   1/1     Running     0          15m
     ```
 
 ## Deploy a hello, world app