added files from christoph

themes/lumbung-theme/layouts/timeline/single.html

@@ -0,0 +1,13 @@
+{{ define "main" }}
+    <main class="main single">
+      <article class="h-entry">
+      <header>
+        <button class="back-button" onclick="history.back()">back to timeline</button>
+        <h1 class="p-name">{{ .Title }}</h1>
+      </header>
+      <div class="e-content">
+        {{ .Content }}
+      </div>
+      </article>
+    </main>
+{{ end }}