fix indentaion in hpa deployment (#12893)

content/en/examples/admin/dns/dns-horizontal-autoscaler.yaml

@@ -8,7 +8,7 @@ metadata:
 spec:
   selector:
     matchLabels:
-       k8s-app: dns-autoscaler
+      k8s-app: dns-autoscaler
   template:
     metadata:
       labels:
@@ -18,16 +18,16 @@ spec:
       - name: autoscaler
         image: k8s.gcr.io/cluster-proportional-autoscaler-amd64:1.1.1
         resources:
-            requests:
-                cpu: "20m"
-                memory: "10Mi"
+          requests:
+            cpu: 20m
+            memory: 10Mi
         command:
-          - /cluster-proportional-autoscaler
-          - --namespace=kube-system
-          - --configmap=dns-autoscaler
-          - --target=<SCALE_TARGET>
-          # When cluster is using large nodes(with more cores), "coresPerReplica" should dominate.
-          # If using small nodes, "nodesPerReplica" should dominate.
-          - --default-params={"linear":{"coresPerReplica":256,"nodesPerReplica":16,"min":1}}
-          - --logtostderr=true
-          - --v=2
+        - /cluster-proportional-autoscaler
+        - --namespace=kube-system
+        - --configmap=dns-autoscaler
+        - --target=<SCALE_TARGET>
+        # When cluster is using large nodes(with more cores), "coresPerReplica" should dominate.
+        # If using small nodes, "nodesPerReplica" should dominate.
+        - --default-params={"linear":{"coresPerReplica":256,"nodesPerReplica":16,"min":1}}
+        - --logtostderr=true
+        - --v=2