Update index.html a tag with '.html' at the end

index.html

@@ -7,7 +7,7 @@ layout: default
 	{% for post in paginator.posts %}
 
 	  <li class="post">
-	  	<h2><a href="{% if site.baseurl == "/" %}{{ post.url }}{% else %}{{ post.url | prepend: site.baseurl }}{% endif %}">{{ post.title }}</a></h2>
+	  	<h2><a href="{% if site.baseurl == "/" %}{{ post.url }}{% else %}{{ post.url | prepend: site.baseurl }}{% endif %}">{{ post.title }}.html</a></h2>
 	  	<time datetime="{{ post.date | date_to_xmlschema }}" class="by-line">{{ post.date | date_to_string }}</time>
 	  	<p>{{ post.excerpt }}</p>
 	  </li>