terraform-docs: automated action

examples/complete/README.md

@@ -14,6 +14,7 @@ atlantis_repo_allowlist        = ["repo1", "repo2"]
 # Optional Parameters
 thumbprint_list                = ["oidc-thumbprint-1", "oidc-thumbprint-2"]
 atlantis_docker_image =        = "<your-custom-docker-image>"
+ecs_cluster_name               = "<your-ecs-cluster-name>"
 ```
 
 ## Requirements