Fix verb tense

docs/index.html

@@ -170,7 +170,7 @@ route: index
     </div>
     <div id="message" class="message is-info">
       <p class="message-header">Info</p>
-      <p class="message-body">While it's possible to add as many columns as you want, it is recommend to stick with <strong>12 columns</strong>.<br>
+      <p class="message-body">While it's possible to add as many columns as you want, it is recommended to stick with <strong>12 columns</strong>.<br>
       If you want smaller divisions, you can always <strong>nest</strong> columns.</p>
     </div>
     <div id="markup">