Superscripting squared

As Kevin told me how :)

views/index.html

@@ -19,7 +19,7 @@
     <main class="jumbotron">
       <h1>These3Words Map</h1>
       <p class="lead">
-        Remember a 3x3 m2 location anywhere in the world with just four words.
+        Remember a 3x3 m<sup>2</sup> location anywhere in the world with just four words.
       </p>
       <p class="text-warning">This is hot off the press. We are still
       finalising the word list, locations might not be