Mini code nice up

Author: k00ni

index.html

@@ -106,7 +106,8 @@ <h2>Design elements and principles</h2>
     <li>Interfaces may have additional implementation specific properties.</li>
     <li>
        We don't define any validation of given values (e.g. IRI, URI, CURIE). 
-       If an implementation enforces valid values, it should state details prominent for the user.</li>
+       If an implementation enforces valid values, it should state details prominent for the user.
+    </li>
   </ul>
 
   <p>