GCP - more detailed information on image

images/providers/gcp/README.md

@@ -2,8 +2,22 @@
 
 Hacky & bare implementation with shell scripts.
 
+/!\ The service account associated with the credentials json must have the "container.clusterRoleBindings.create" permission.
+
+You can add it by running:
+
+```
+gcloud projects add-iam-policy-binding <project> \
+  --member=serviceAccount:<service-account>@developer.gserviceaccount.com \
+  --role=roles/container.admin
+```
+
 # Limitations
 
-- The "Compute Engine API - GPUs (all regions)" quota must be requested manually [here](https://console.cloud.google.com/iam-admin/quotas?metric=GPUs%20(all%20regions))
+- The "Compute Engine API - GPUs (all regions)" quota must be requested manually [here](<https://console.cloud.google.com/iam-admin/quotas?metric=GPUs%20(all%20regions)>)
+- By default, the system node and the load balancer will be kept on, incuring charges of about 45€ per months. You can manually scale down the system node to 0 to temporarily stop its associated charges or run `kuda delete` to completely delete the cluster.
 - Currently the load balancer doesn't get deleted when you delete the cluster. Make sure to delete it manually [here](https://console.cloud.google.com/net-services/loadbalancing/loadBalancers/list) after deleting a cluster to avoid extra costs.
-- You can find a list of parameters that you can override in `.config.sh`
+- You can find a list of parameters that you can override in `.config.sh`
+
+# Development
+