diff --git a/clr-k8s-examples/README.md b/clr-k8s-examples/README.md
index 7b175e6..ec0ee68 100644
--- a/clr-k8s-examples/README.md
+++ b/clr-k8s-examples/README.md
@@ -8,6 +8,7 @@ To be able to test this tool, you can create a 3-node vagrant setup. In this tut
 * `vagrant up --provider=libvirt`
 
 Now you have a 3 node cluster up and running. Each of them have 2 vCPU, 4GB Memory, 2x10GB disks, 1 additional private network.
+Customize the setup using environment variables. E.g., `NODES=1 MEMORY=8192 CPUS=8 vagrant up --provider=libvirt`
 
 To login to the master node and change to this directory