byline for week

app/templates/archive.html

@@ -5,7 +5,14 @@
 {% block content %}
     <div class="index archive">
     {% if week_title %}
-    <h2 class="week">{{ week_title }}</h2>
+    <h2 class="week{% if week_byline %} with-byline{% endif %}">
+            {% if week_byline %}
+            <div>{{ week_title }}</div>
+            <div class="byline">{{ week_byline }}</div>
+            {% else %}
+            {{ week_title }}
+            {% endif %}
+    </h2>
     {% endif %}
     {% for item in items %}
         {% include "listitem.html" with item=item %}