docs: add comment describing dependency of startup

ops/tf/main.tf

@@ -31,6 +31,12 @@ module "compute_instance" {
   zone = var.gcp_zone
 
   cloud_init_content = ""
+  // This creates an implicit dependency, meaning Terraform will create the requester_instance before the compute_instance.
+  // In the event the bacalhau process on the compute instance stars BEFORE the requester instance (which would be
+  // abnormal but possible) the compute will fail to bootstrap to the requester and fail to start.
+  // This can happen if setting up the requester VM takes longer than settin up the compute. So there is a TODO here:
+  // Bacalhau should not stop the node if it fails to connect to a peer, it should instead continue to try until is
+  // succeeds and complain loudly along the way as it fails.
   requester_ip = module.requester_instance.requester_private_ips[0]
   compute_instance_count = var.compute_count
   compute_instance_type = var.compute_machine_type