NestedTemplate.json

{
      "$schema": "https://schema.management.azure.com/schemas/2015-01-01/deploymentTemplate.json#",
      "contentVersion": "1.0.0.0",
      "parameters": {
    	"StorageAccountName": {
      	"type": "String"
    	}
      },
      "variables": {"templatelink":"https://raw.githubusercontent.com/rjmax/ArmExamples/master/newStorageAccount.json"},
      "resources": [
        {
          "apiVersion": "2015-01-01",
          "name": "nestedTemplate",
          "type": "Microsoft.Resources/deployments",
          "properties": {
            "mode": "incremental",
            "templateLink": {"uri":"[variables('templatelink')]","contentVersion":"1.0.0.0"},
	    "parameters": {
		"StorageAccountName":{"value":"[parameters('StorageAccountName')]"}
	    }
          }
        }
      ]
    }