Update gitlab.md

Add missing "To Be Created" message instead of a blank page...

Signed-off-by: Yacine Kheddache <yacine@microcks.io>

Author: yada

content/documentation/guides/automation/gitlab.md

@@ -6,3 +6,10 @@ publishdate: 2019-11-11
 lastmod: 2024-06-10
 weight: 7
 ---
+
+> 🪄 **To Be Created**
+>
+> This is a new documentation page that has to be written as part of our [Refactoring Effort](https://github.com/microcks/microcks.io/issues/81).
+> 
+> **Goal of this page**
+> * ...