added parameter name to json

Author: farhanalam

step-templates/letsencrypt-azure-dns.json

@@ -91,6 +91,16 @@
       "DisplaySettings": {
         "Octopus.ControlType": "Checkbox"
       }
+    },
+    {
+      "Id": "36451c6b-f61d-4e00-b1f6-956341c9691d",
+      "Name": "LE_AzureDNS_DnsAlias",
+      "Label": "DNS Alias",
+      "HelpText": "Use a CNAME alias for the TXT challenge.",
+      "DefaultValue": "",
+      "DisplaySettings": {
+        "Octopus.ControlType": "SingleLineText"
+      }
     }
   ],
   "$Meta": {