More debugging references

Signed-off-by: Marco Emilio "sphakka" Poleggi <marcoep@ieee.org>

README.md

@@ -33,7 +33,10 @@ lcl$ ansible --version
 
 **Goal:** create a VM that will be managed by Ansible.
 
-:bulb: If you followed the [Terraform exercise](https://gitedu.hesge.ch/lsds/teaching/bachelor/cloud-and-deployment/lab-terraform/-/blob/main/SwitchEngines/README.md), use your TF plan to bring up your assigned sandbox instance and **skip** the rest of this task. Otherwise Chose any Cloud you are familiar with, then:
+:bulb: If you followed the [Terraform
+exercise](https://gitedu.hesge.ch/lsds/teaching/bachelor/cloud-and-deployment/lab-terraform/-/blob/main/SwitchEngines/README.md),
+use your TF plan to bring up your assigned sandbox instance and **skip** the
+rest of this task. Otherwise, chose any Cloud you are familiar with, then:
 
   1. Import or create an RSA key pair for SSH access to the VM.
 
@@ -689,8 +692,15 @@ service.
 :hammer_and_wrench: **Over to you now.** Prepare another playbook based on the
 `playbooks/kind-metallb.yml` boilerplate.
 
-:bulb: To go as quick as possible, provision a 2-node KinD cluster with 2
-http-echo pods on the only worker node.
+:bulb: To go as quick as possible, please:
+  * provision a more powerful VM: 2 CPUs, 4GB RAM, 40GB root disk -- no extra
+    volume needed;
+  * provision a 2-node KinD cluster with 2 http-echo pods on the only worker
+    node;
+  * use Ansible's [debugging
+    features](https://docs.ansible.com/ansible/latest/playbook_guide/playbooks_debugger.html)
+    and [debug
+    module](https://docs.ansible.com/ansible/latest/collections/ansible/builtin/debug_module.html#ansible-collections-ansible-builtin-debug-module).
 
 Once done, use the following test track to finalize your workflow:
   1. The first playbook run shall install, provision and deploy everything. The