Update README.md

Author: ghuntley

README.md

@@ -70,6 +70,7 @@ Coder maintains an official list of comparisons in the [coder/coder README.md](h
 
 ## Automation
 
+- [Provision Coder with Terraform](https://github.com/ElliotG/coder-oss-tf) - Coder OSS on GKE with Terraform in <20 minutes.
 - [Update Coder Template](https://github.com/marketplace/actions/update-coder-template) - A GitHub action to automate coder template changes.
 - [Provision Coder with Lima](https://github.com/coder/coder/tree/main/examples/lima) - Linux virtual machines, typically on macOS, for running containerd.