Add link.

src/web/app/mobile/tags/ui-nav.tag

@@ -10,6 +10,7 @@
 				<li class="home"><a href="/"><i class="icon fa fa-home"></i>ホーム<i class="angle fa fa-angle-right"></i></a></li>
 				<li class="notifications"><a href="/i/notifications"><i class="icon fa fa-bell-o"></i>通知<i class="angle fa fa-angle-right"></i></a></li>
 				<li class="messaging"><a href="/i/messaging"><i class="icon fa fa-comments-o"></i>メッセージ<i class="angle fa fa-angle-right"></i></a></li>
+				<li class="tv"><a href="//misskey.tk"><i class="icon fa fa-television"></i>MisskeyTV™<i class="angle fa fa-angle-right"></i></a></li>
 			</ul>
 			<ul>
 				<li class="settings"><a onclick={ search }><i class="icon fa fa-search"></i>検索<i class="angle fa fa-angle-right"></i></a></li>