Adding link to corresponding blog post on https://www.how-hard-can-it…

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README.md

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 This repository contains a one-stop Terraform module that creates a single node [OpenVPN Server](https://en.wikipedia.org/wiki/OpenVPN) cluster in a dedicated AWS VPC and subnet. The OpenVPN server is configured to be readily accessible by the users supplied in the Terraform input file. The same Terraform input file can be used to subsequently update the list of authorised users.
 
+> For further information, see the corresponding article on [Ready to Use OpenVPN Servers in AWS For Everyone](https://www.how-hard-can-it.be/openvpn-server-install-terraform-aws/) on [How Hard Can It Be?!](https://www.how-hard-can-it.be/).
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 ## You Have