Use better name for blog section HTML.

src/_includes/blog.html

@@ -0,0 +1,14 @@
+<section id="two" class="wrapper alt style2">
+
+  {% for post in site.categories.values %}
+
+  <section class="spotlight">
+    <div class="image">{% if post.image %}<img src="{% if site.featured-image-source %}{{ post.image | prepend: site.featured-image-source | absolute_url }}{% else %}{{ "" | absolute_url }}/assets/images/{{ post.image }}{% endif %}" alt="" />{% endif %}</div>
+    <div class="content">
+      <h2><a href="{{ post.url | relative_url }}" class="link">{{ post.title }}</a></h2>
+      <p>{{ post.description }}</p>
+    </div>
+  </section>
+  {% endfor %}
+
+</section>