Update index.html

Fixed opens in new tab typo

app/views/design-system/rsd-design-system/design-patterns/footer/index.html

@@ -115,7 +115,7 @@ <h2>When not to use this component</h2>
     </ul>
 
     <h2>Links</h2>
-    <p>The RSD footer includes several links. We include (opens in new tab) in the link text where users are likely to have the new page open alongside the system.
+    <p>The RSD footer includes several links. We include (opens in a new tab) in the link text where users are likely to have the new page open alongside the system.
     </p>
     <h3>Get help with a Regions Group system (opens in a new tab)</h3>
     <p>This links to a Microsoft Form where users can request help with using the system. The same Microsoft Form