Documentation additions. Fixes to compilation. Made true passthrough which works.

examples/pixywerk.com/publish/templates/default.jinja2

@@ -0,0 +1,9 @@
+<html>
+  <head>
+    <title>{{ metadata.title }}</title>
+    <link rel="stylesheet" type="text/css" href="css/main.css">
+  </head>
+  <body>
+    {{ content }}
+  </body>
+</html>