Enable additional author attribution on home page

Author: morehouse

index.html

@@ -17,7 +17,7 @@
       </div><!-- /.entry-image -->
     {% endif %}
     <div class="entry-meta">
-      <span class="entry-date date published updated"><time datetime="{{ post.date | date_to_xmlschema }}"><a href="{{ site.url }}{{ post.url }}">{{ post.date | date: "%B %d, %Y" }}</a></time></span><span class="author vcard"><span class="fn"><a href="{{ site.url }}/about/" title="About {{ site.owner.name }}">{{ site.owner.name }}</a></span></span>
+	    <span class="entry-date date published updated"><time datetime="{{ post.date | date_to_xmlschema }}"><a href="{{ site.url }}{{ post.url }}">{{ post.date | date: "%B %d, %Y" }}</a></time></span><span class="author vcard"><span class="fn"><a href="{{ site.url }}/about/" title="About {{ site.owner.name }}">{{ site.owner.name }}</a> {{ post.additional_authors }}</span></span>
       {% if site.reading_time %}
       <span class="entry-reading-time">
         <i class="fa fa-clock-o"></i>