Update 404.md

Author: structured-query-language

404.md

@@ -56,7 +56,7 @@
 {% endfor %}
 </ul>
 
-# Ratio to Report (`ratio_to_report`)
+## Ratio to Report (`ratio_to_report`)
 <ul id="recent-articles">
 {% for page in site.pages %}
     {% if page.title contains "RATIO_TO_REPORT" %}