Add release version badge

Author: Stretch96

README.md

@@ -2,6 +2,7 @@
 Terraform module to host a static site generated by Publii
 
 [![Terraform CI](https://github.com/chris-qa-org/terraform-aws-publii-hosting/actions/workflows/main.yml/badge.svg?branch=main)](https://github.com/chris-qa-org/terraform-aws-publii-hosting/actions/workflows/main.yml?branch=main)
+[![GitHub release](https://img.shields.io/github/release/chris-qa-org/terraform-aws-publii-hosting.svg)](https://github.com/chris-qa-org/terraform-aws-publii-hosting/releases/)
 
 <!-- BEGIN_TF_DOCS -->
 ## Requirements