fix bad docs

docs/Getting-Started-TPU-VM.md

@@ -101,8 +101,8 @@ accel_env:
 
 docker_repository: levanter  # default
 zone: us-west4-a  # if not set, will use your default zone
-tpu_name: test-spin-up-32
-tpu_type: "v5litepod-16"
+tpu: test-spin-up-32  # name of the TPU
+tpu_type: "v4-16"
 capacity_type: "preemptible"
 subnetwork: "default"  # default
 EOF
@@ -319,11 +319,12 @@ This will show you a list of files and directories in the repo, sorted by size,
 
 ### Automatic Setup
 
+!!! warning
+    This approach is deprecated and will be removed in the future. Please use `launch.py` or `launch_on_ray.py` instead.
+
 You can use `infra/spin-up-vm.sh` to create a TPU VM instance. In addition to creating the instance, it will set up
 the venv on each worker, and it will clone the repo to `~/levanter/`.
 
-**For Public Users**:
-
 ```bash
 bash infra/spin-up-vm.sh <name> -z <zone> -t <type> -n <subnetwork> [--preemptible] [--use-alpha]
 ```