add missing semicolon in index.html

index.html

@@ -133,7 +133,7 @@ <h2>Layout</h2>
         <p>
           To have your page structured as a responsive, readable column, wrap
           all of your content in <code>&lt;main&gt</code> tags, and then use
-          <code>&lt;section&gt</code> tags to break up long form content
+          <code>&lt;section&gt;</code> tags to break up long form content
           content into sections. This page is a good example of how to do this.
         <p>
         <p>