theme: Customize 404 page with 404cat

themes/ccchh/layouts/404.html

@@ -1,8 +1,10 @@
 {{ define "main" }}
+{{- $image := resources.Get "images/404.png" }}
   <main class="container" aria-role="main">
     <div>
       <h1 id="title">404 Page not Found</h1>
-      <a href="{{ "" | relURL }}">Back Home</a>
+      <p>The requested page was not found. Maybe try searching from <a href="{{ .Site.Home.RelPermalink }}">home</a>.</p>
+      <img src="{{ $image.RelPermalink }}">
     </div>
   </main>
 {{ end }}