301-dns-forwarder/post-template-deployment query

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[301-dns-forwarder](https://github.com/Azure/azure-quickstart-templates/tree/master/301-dns-forwarder)

### Issue Details

I tried to deploy this template. is there post deployment will needed to be configured?

### Repro steps (*if necessary, delete otherwise*)
1. Deployed the template
2. Let it running
3. Configure on-prem dns for Forward Query to the DNS Forwarder VM in Azure
4. No other configuration. Upon checking seems bind9 didnt get configured

Start with the 301-dns-forwarder template linked in the issue and review its deployment steps and outputs. Reproduce the deployment, then check the reported on-premises DNS forwarding setup and whether bind9 is configured; done means documenting the required post-deployment configuration or identifying the template issue.

Written by the indexing model from the issue text.