diff --git a/CloudComputing_Lab/modules/ROOT/pages/index.adoc b/CloudComputing_Lab/modules/ROOT/pages/index.adoc
index 29e393c..ddda7a6 100644
--- a/CloudComputing_Lab/modules/ROOT/pages/index.adoc
+++ b/CloudComputing_Lab/modules/ROOT/pages/index.adoc
@@ -30,7 +30,7 @@
 
 === Digital skills
 
-
+* xref:ROOT:docker-build.adoc[docker build --> a simple Node.js application]
 
 
 == Intro