fix network cmd

Author: Padraic-O-Mhuiris

cmd/obol/main.go

@@ -45,6 +45,11 @@ COMMANDS:
      stack down      Stop the Obol Stack
      stack purge     Delete stack config (use --force to also delete data)
 
+   Network Management:
+     network list    List available networks
+     network install Install and deploy network to cluster
+     network delete  Remove network and clean up cluster resources
+
    Kubernetes Tools (with auto-configured KUBECONFIG):
      kubectl         Run kubectl with stack kubeconfig (passthrough)
      helm            Run helm with stack kubeconfig (passthrough)