Update newsletter link to the .com url

_includes/footer.html

@@ -13,7 +13,7 @@
 <!--     <li><a href="http://jenmyers.tumblr.com" title="Tumblr"><i class="icon icon-tumblr icon-2x"></i></a></li> -->
     <li><a href="https://mettlechicago.bigcartel.com/" title="Store"><i class="icon icon-shopping-basket icon-2x"></i></a></li>
     <li><a href="https://www.patreon.com/jenmyers" title="Patreon"><i class="icon icon-gift icon-2x"></i></a></li>
-    <li><a href="http://tinyletter.com/jenmyers" title="Newsletter"><i class="icon icon-paper-plane icon-2x"></i></a></li>
+    <li><a href="https://modernadventuress.com" title="Newsletter"><i class="icon icon-paper-plane icon-2x"></i></a></li>
   </ul>
 
   <a class="button-hairline button-contact" href="mailto:hello@jenmyers.net">Email</a>