Use better name for blog section HTML.

src/_layouts/default.html

@@ -5,7 +5,7 @@
   {% include header.html %}
   {% include banner.html %}
   {% include core-values.html %}
-  {% include section-two.html %}
+  {% include blog.html %}
   {% include section-three.html %}
   {% include contact.html %}
   {% include footer.html %}