Update Frontend.md

Author: kevshin2002

source/Frontend/Frontend.md

@@ -9,9 +9,10 @@ permalink: /Frontend
 # What is the Frontend?
 {: .no_toc }
 
----
-
 {: .note }
 > This guide has been prepared by [name](github or linkedin)
 
-## Title 1
+## Table of Contents
+{:toc}
+
+## Title 1