Use better name for services section HTML.

src/_layouts/default.html

@@ -6,7 +6,7 @@
   {% include banner.html %}
   {% include core-values.html %}
   {% include blog.html %}
-  {% include section-three.html %}
+  {% include services.html %}
   {% include contact.html %}
   {% include footer.html %}
   {% include foot-scripts.html %}