index update

Author: JeffKoMS

index.md

@@ -10,7 +10,9 @@ This page lists exercises associated with Microsoft skilling content on [Microso
 
 The following exercises are designed to provide you with a hands-on learning experience implementing HTTP operations, and rendering the results, in an ASP.NET Core Blazor web app. Learn how to gather needed information from a documented API, implement HTTP clients, and perform data operation through an API. 
 
-## Exercises
+### Exercises
+<hr/>
+
 
 {% assign labs = site.pages | where_exp:"page", "page.url contains '/Instructions/Labs'" %}
 {% for activity in labs  %}