change Forum index.html to use main instead of article

WidgetFEKK/Forum/templates/Forum/index.html

@@ -9,7 +9,7 @@
 {% block title %}Widget's Forum{% endblock %}
 
 {% block content %}
-<article>
+<main>
     <h1 id="title">Welcome to Widget's Forum!</h1>
 
     <h5 id="subtitle">Forum posts:</h5>
@@ -18,5 +18,5 @@
             <li><a href="/posts/{{ post.pk }}/details"><strong>{{ post.post_title }}</strong> by <strong>{{ post.author.first_name }} {{ post.author.last_name }}</strong> dated <strong>{{ post.pub_date|date:"d/m/Y" }}</strong></a></li>
         {% endfor %}
     </ul>
-</article>
+</main>
 {% endblock %}
\ No newline at end of file