Fix about URL in byline

_layouts/post.html

@@ -33,7 +33,7 @@
         <div class="article-author-bottom">
           {% include author-bio.html %}
         </div>
-        <p class="byline"><strong>{{ page.title }}</strong> was published on <time datetime="{{ page.date | date_to_xmlschema }}" itemprop="datePublished">{{ page.date | date: "%B %d, %Y" }}</time>{% if page.modified %} and last modified on <time datetime="{{ page.modified | date: "%Y-%m-%d" }}" itemprop="dateModified">{{ page.modified | date: "%B %d, %Y" }}</time>{% endif %} by <span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name"><a href="/about" title="About {{ site.owner.name }}" itemprop="url">{{ site.owner.name }}</a></span></span>.</p>
+        <p class="byline"><strong>{{ page.title }}</strong> was published on <time datetime="{{ page.date | date_to_xmlschema }}" itemprop="datePublished">{{ page.date | date: "%B %d, %Y" }}</time>{% if page.modified %} and last modified on <time datetime="{{ page.modified | date: "%Y-%m-%d" }}" itemprop="dateModified">{{ page.modified | date: "%B %d, %Y" }}</time>{% endif %} by <span itemprop="author" itemscope itemtype="http://schema.org/Person"><span itemprop="name"><a href="{{ site.url }}/about" title="About {{ site.owner.name }}" itemprop="url">{{ site.owner.name }}</a></span></span>.</p>
       </footer>
     </div><!-- /.article-wrap -->
   </article>