Clean up, switch to modern maddybook, netlify

layouts/_partials/header.html

@@ -0,0 +1,7 @@
+<header>
+  <button class="theme-toggle" title="Toggle light/dark theme"></button>
+  <script src="/js/theme.js"></script>
+  <h1><a href="/">Florilegium ¹</a></h1>
+  <h2><a href="https://makyo.ink">¹ Madison Rye Progress</a></h2>
+  {{ if .Params.subtitle }}<!--<h3>{{ .Params.subtitle }}</h3>-->{{ end }}
+</header>