Fix SSH key input

Author: dramasamy

articles/operator-nexus/howto-kubernetes-cluster-dual-stack.md

@@ -96,8 +96,15 @@ This parameter file is intended to be used with the [QuickStart guide](./quickst
     "location": {
       "value": "eastus"
     },
-    "sshPublicKey": {
-      "value": "ssh-rsa AAAAB...."
+    "sshPublicKeys": {
+      "value": [
+        {
+          "keyData": "ssh-rsa AAAAB..."
+        },
+        {
+          "keyData": "ssh-rsa AAAAC..."
+        }
+      ]
     },
     "podCidrs": {
       "value": ["10.244.0.0/16", "fd12:3456:789a::/64"]

articles/operator-nexus/howto-kubernetes-cluster-huge-pages.md

@@ -67,8 +67,15 @@ Refer to the Nexus Kubernetes cluster [quickStart guide](./quickstarts-kubernete
     "location": {
       "value": "eastus"
     },
-    "sshPublicKey": {
-      "value": "ssh-rsa AAAAB...."
+    "sshPublicKeys": {
+      "value": [
+        {
+          "keyData": "ssh-rsa AAAAB..."
+        },
+        {
+          "keyData": "ssh-rsa AAAAC..."
+        }
+      ]
     },
     "initialPoolAgentOptions": {
       "value": {"hugepagesCount": 512,"hugepagesSize": "2M"}

articles/operator-nexus/howto-kubernetes-service-load-balancer.md

@@ -105,8 +105,15 @@ This parameter file is intended to be used with the [quickStart guide](./quickst
     "location": {
       "value": "eastus"
     },
-    "sshPublicKey": {
-      "value": "ssh-rsa AAAAB...."
+    "sshPublicKeys": {
+      "value": [
+        {
+          "keyData": "ssh-rsa AAAAB..."
+        },
+        {
+          "keyData": "ssh-rsa AAAAC..."
+        }
+      ]
     },
     "ipAddressPools": {
       "value": [