Change lab level from 500 to 400

Author: ChrisHowd

Instructions/Labs/LAB_AK_14_implement-spec-driven-development.md

@@ -3,11 +3,10 @@ lab:
   title: Exercise - Implement a product feature using GitHub Spec Kit
   description: Learn how to add new features to existing applications using GitHub Spec Kit workflows, Visual Studio Code, and GitHub Copilot.
   duration: 75 minutes
-  level: 500
+  level: 400
   islab: true
   primarytopics:
     - GitHub
-    - Visual Studio
     - Visual Studio Code
 ---