✨feature: Set up templated views and blog support

templates/header.html

@@ -0,0 +1,11 @@
+{{ define "header" }}
+<header>
+  <nav>
+    <ul>
+      {{ range .Nav }}
+        <li><a href="{{ .URL }}">{{ .Title }}</a></li>
+      {{ end }}
+    </ul>
+  </nav>
+</header>
+{{ end }}