adding a full stop

Author: Orin-Thomas

learn-pr/advocates/challenge-github-copilot-sql/5-summary.yml

@@ -3,7 +3,7 @@ uid: learn.challenge-github-copilot-with-sql.summary
 title: Summary
 metadata:
   title: Summary
-  description: Summary of the module
+  description: Summary of the module.
   ms.date: 06/25/2025
   author: Orin-Thomas
   ms.author: orthomas