docs: updated docs for nomad

docs/nomad/README.md

@@ -2,7 +2,7 @@
 
 ## Preconditions
 
-- Nomad >= 1.4.x cluster installed following the [Nomad Reference Architecture for production deployments](https://developer.hashicorp.com/nomad/tutorials/enterprise/production-reference-architecture-vm-with-consul). The setup was tested on Nomad Community, version 1.5.x.
+- Nomad >= 1.4.x cluster installed following the [Nomad Reference Architecture for production deployments](https://developer.hashicorp.com/nomad/tutorials/enterprise/production-reference-architecture-vm-with-consul). The setup was tested on Nomad Community, version 1.9.3.
 - The cluster nodes need to have the `docker` driver installed & configured with [`allow_privileged = true`](https://developer.hashicorp.com/nomad/docs/drivers/docker#allow_privileged).
 - The HCL resources are meant to be executed on a machine having nomad installed (with access to the Nomad API).
 
@@ -33,12 +33,7 @@ job "hcloud-csi-controller" {
   type        = "service"
 
   group "controller" {
-
-    ### NOTE
-    # We define (at least) 2 allocations to increase the availability in case of a node failure with
-    # a controller allocation running on that node. On a "Single Node Cluster", the group stanzas
-    # might need modification or should be removed.
-    count = 2
+    count = 1
 
     constraint {
       distinct_hosts = true