link back

404.html

@@ -10,6 +10,7 @@ image: /siteicon.png
     <h1>{{ site.title }}</h1>
     <h2>{{ page.title }}</h2>
     <h2>{{ page.description }}</h2>
+    <a href="/" alt="back home"><h2>Go to homepage</h2></a>
     {% include liberapay.html %}
   </div>
   <div class="fullscreen-bg">