index: mention :Tutor #359

Author: discentem

index.html

@@ -72,7 +72,7 @@ <h3>Drop-in Vim</h3>
         <li>
           Start with
           <a href="/doc/user/nvim.html#nvim-from-vim"><code>:help nvim-from-vim</code></a>
-          if you already use Vim.
+          if you already use Vim. If not, try <code>:Tutor</code>.
         </li>
       </ul>