Added suggestion to startup VM with a Container-Optimized OS to TFF on GCP docs.
@@ -11,6 +11,9 @@ high-performance simulations with TFF on GCP.
1. [Create a Compute Engine instance](https://cloud.google.com/endpoints/docs/grpc/get-started-compute-engine-docker#create_vm).
+ NOTE: To have Docker pre-installed, selected a "Container-Optimized"
+ boot disk when starting the VM.
+
1. `ssh` into the instance.
```shell
