Fix malformed JSON

Added Schema and parameters entry

Author: marcvaneijk

101-application-gateway-public-ip/azuredeploy.parameters.json

@@ -1,20 +1,24 @@
 {
+  "$schema": "http://schema.management.azure.com/schemas/2015-01-01/deploymentParameters.json#",
+  "contentVersion": "1.0.0.0",
+  "parameters": {
     "addressPrefix": {
-        "value": "10.0.0.0/16"
+      "value": "10.0.0.0/16"
     },
     "subnetPrefix": {
-        "value": "10.0.0.0/24"
+      "value": "10.0.0.0/24"
     },
     "skuName": {
-        "value": "Standard_Small"
+      "value": "Standard_Small"
     },
     "capacity": {
-        "value": 2
+      "value": 2
     },
     "backendIpAddress1": {
-        "value": "10.0.1.10"
+      "value": "10.0.1.10"
     },
     "backendIpAddress2": {
-        "value": "10.0.1.11"
+      "value": "10.0.1.11"
     }
+  }
 }