Updating getting started guide to point users to use a more recent ve… (#194)

* Updating getting started guide to point users to use a more recent version of TPU (v6 instead of v4, which was hard to find), and simplifying content

* Update first_run.md

Author: Grappeggia

docs/getting_started/first_run.md

@@ -8,15 +8,19 @@ We recommend starting with a single host first and then moving to multihost.
 Local development is a convenient way to run MaxDiffusion on a single host. It doesn't scale to
 multiple hosts.
 
-1. [Create and SSH to a single-host TPU (v4-8). ](https://cloud.google.com/tpu/docs/users-guide-tpu-vm#creating_a_cloud_tpu_vm_with_gcloud)
+1. [Create and SSH to a single-host TPU (v6-8). ](https://cloud.google.com/tpu/docs/users-guide-tpu-vm#creating_a_cloud_tpu_vm_with_gcloud)
+* You can find here [here](https://cloud.google.com/tpu/docs/regions-zones) the list of zones that support the v6(Trillium) TPUs
+* We recommend using the base VM image "v2-alpha-tpuv6e", which meets the version requirements: Ubuntu Version 22.04, Python 3.10 and Tensorflow >= 2.12.0
+   
 1. Clone MaxDiffusion in your TPU VM.
+```bash
+git clone https://github.com/AI-Hypercomputer/maxdiffusion.git
+cd maxdiffusion
+```
+
 1. Within the root directory of the MaxDiffusion `git` repo, install dependencies by running:
 ```bash
-If you are running on TPU:
 bash setup.sh MODE=stable DEVICE=tpu
-
-If you are running on GPU:
-bash setup.sh MODE=stable DEVICE=gpu
 ```
 
 ## Getting Starting: Multihost development