enable hiding byline on article page

website/themes/ots/templates/article.html

@@ -9,7 +9,9 @@
         <h1>{{ article.title }}</h1>
         <div class="post-info">
           <div class="w3-opacity w3-margin-right w3-margin-bottom" style="flex-grow: 1;">
+            {% if not HIDE_AUTHOR %}
             <p>By {{ article.author }}</p>
+            {% endif %}
             <span><time datetime="{{ article.date.isoformat() }}">{{ article.date.strftime("%d %B %Y")}}</time> 
                 {% if article.category != "Posts" %}
                 in <a href="{{ SITEURL }}/{{ article.category.url }}" title="All articles in category {{ article.category }}">{{ article.category }}</a></span>