Merge pull request #14 from mineiros-io/update-readme

set terraform version to 0.12.20 in terraform badge

README.md

@@ -3,7 +3,7 @@
 [![Maintained by Mineiros.io](https://img.shields.io/badge/maintained%20by-mineiros.io-00607c.svg)](https://www.mineiros.io/ref=repo_terraform-github-repository)
 [![Build Status](https://mineiros.semaphoreci.com/badges/terraform-aws-s3-bucket/branches/master.svg?style=shields)](https://mineiros.semaphoreci.com/badges/terraform-aws-s3-bucket/branches/master.svg?style=shields)
 [![GitHub tag (latest SemVer)](https://img.shields.io/github/v/tag/mineiros-io/terraform-aws-s3-bucket.svg?label=latest&sort=semver)](https://github.com/mineiros-io/terraform-aws-s3-bucket/releases)
-[![Terraform Version](https://img.shields.io/badge/terraform-~%3E%200.12.9-brightgreen.svg)](https://github.com/hashicorp/terraform/releases)
+[![Terraform Version](https://img.shields.io/badge/terraform-~%3E%200.12.20-brightgreen.svg)](https://github.com/hashicorp/terraform/releases)
 [![License](https://img.shields.io/badge/License-Apache%202.0-brightgreen.svg)](https://opensource.org/licenses/Apache-2.0)
 
 # terraform-aws-s3-bucket