Merge branch 'opentofu-note-in-readme' into 'master'

Add OpenTofu note to README

See merge request https://gitlab.com/gitlab-org/terraform-images/-/merge_requests/254



Merged-by: João Alexandre Cunha <j.a.cunha@gmail.com>
Approved-by: João Alexandre Cunha <j.a.cunha@gmail.com>
Co-authored-by: Timo Furrer <tfurrer@gitlab.com>

README.md

 # Terraform Images
 
-This repository won't upgrade to any new Terraform releases with the BSL license for now.
-Please follow [this issue](https://gitlab.com/gitlab-org/terraform-images/-/issues/114) for updates.
+> 🚨 This repository won't upgrade to any new Terraform releases with the BSL license for now.
+> Please follow [this issue](https://gitlab.com/gitlab-org/terraform-images/-/issues/114) for updates.
+> 
+> We'd like to advise you to use the new [**OpenTofu CI/CD component**](https://gitlab.com/components/opentofu).
+>
+> Alternatively, you may build this project with the latest Terraform release yourself and 
+> host it in your own registry.
+
 
 This repository provides a docker image which contains the `gitlab-terraform` shell script. This script is a thin wrapper around the `terraform` binary. Its main purpose is to serve the [Infrastructure as code with Terraform and GitLab
 ](https://docs.gitlab.com/ee/user/infrastructure/), by extracting some of the standard configuration a user would need to set up to use the Terraform backend on GitLab as well as the Terraform merge request widget.
@@ -24,33 +30,33 @@ Should be the backend URL. For the GitLab backend it will be something like:
 
 ### `TF_USERNAME`
 
-Is your user login name, which must have maintainer access. If this is unset, it will default to the value of GITLAB_USER_LOGIN which is the username that triggered the build.
+Is your user login name, which must have maintainer access. If this is unset, it will default to the value of `GITLAB_USER_LOGIN` which is the username that triggered the build.
 
 ### `TF_PASSWORD`
 
-An access token created for the above maintainer with the api scope. If this is unset, it will default to the value of CI_JOB_TOKEN and override the TF_USERNAME to match.
+An access token created for the above maintainer with the `api` scope. If this is unset, it will default to the value of `CI_JOB_TOKEN` and override the `TF_USERNAME` to match.
 
-## Support for Gitlab CI Environment Variables
+## Support for GitLab CI Environment Variables
 
-gitlab-terraform exposes the following Gitlab CI Environment Variables as TF_VAR inputs
+`gitlab-terraform` exposes the following GitLab CI Environment Variables as `TF_VAR` inputs
 
-- CI_JOB_ID
+- `CI_JOB_ID`
 
-- CI_COMMIT_SHA
+- `CI_COMMIT_SHA`
 
-- TF_VAR_CI_JOB_STAGE
+- `TF_VAR_CI_JOB_STAGE`
 
-- CI_PROJECT_ID
+- `CI_PROJECT_ID`
 
-- CI_PROJECT_NAME
+- `CI_PROJECT_NAME`
 
-- CI_PROJECT_NAMESPACE
+- `CI_PROJECT_NAMESPACE`
 
-- CI_PROJECT_PATH
+- `CI_PROJECT_PATH`
 
-- CI_PROJECT_URL
+- `CI_PROJECT_URL`
 
-You can use these in your terraform files in the following way
+You can use these in your Terraform files in the following way
 
 ```
 variable "CI_PROJECT_NAME" {
@@ -72,9 +78,9 @@ If there's no other issue already discussing what you want, simply open a new is
 
 This project uses [Semantic Versioning](https://semver.org). We use commit
 messages to automatically determine the version bumps, so they should adhere to
-the conventions of [Conventional Commits (v1.0.0)](https://www.conventionalcommits.org/en/v1.0.0/).
+the conventions of [Conventional Commits `(v1.0.0)`](https://www.conventionalcommits.org/en/v1.0.0/).
 
 # Release
 
 Currently we release three versions of this image to support the last three stable major versions of Terraform. 
-The image versioning is documented [here](https://docs.gitlab.com/ee/user/infrastructure/iac/gitlab_terraform_helpers.html#terraform-images).
\ No newline at end of file
+The image versioning is documented [here](https://docs.gitlab.com/ee/user/infrastructure/iac/gitlab_terraform_helpers.html#terraform-images).