diff --git a/4.prueba_k8s.sh b/4.prueba_k8s.sh
index 8fe3cf7..9d92591 100755
--- a/4.prueba_k8s.sh
+++ b/4.prueba_k8s.sh
@@ -8,6 +8,16 @@ kubectl get deployment -n demo-app
 kubectl get pods -n demo-app
 
 
+kubectl expose deployment nginx-app -n demo-app --type NodePort --port 80
+kubectl get svc -n demo-app
+
+# poner la IP obtenida
+#### curl http://<Any-worker-IP>:<puerto>
+
+curl http://localhost:30336
+
+
+
 
 
 kubectl run test-pod2 --image=busybox -- sleep 3600
diff --git a/README.md b/README.md
index e314064..4abffc3 100644
--- a/README.md
+++ b/README.md
@@ -2,6 +2,8 @@
 
 https://pabpereza.notion.site/Install-kubernetes-1-28-on-Ubuntu-Server-20-04-LTS-6f8d28eadb6242f0a78c40eaa0211167
 
+https://medium.com/@pabloperezaradros/install-kubernetes-1-28-e42ad9194d4f
+
 
 https://www.linuxtechi.com/install-kubernetes-on-ubuntu-24-04/