add basic render example + fix a bug where missing root metInfo prevented fetching metaInfo from deeper in the component heirarchy

examples/index.html

@@ -8,6 +8,7 @@
   <h1>Vue Meta Examples</h1>
   <ul>
     <li><a href="basic">Basic</a></li>
+    <li><a href="basic-render">Basic Render</a></li>
   </ul>
 </body>
 </html>