update upload form

pages/aulas.html

@@ -10,7 +10,7 @@ lang: pt
     </div>
     <div class="content">
         {% assign aulas = site.data.aulas | sort: 'date' | reverse %}
-        {% assign max_aulas = 3 %}
+        {% assign max_aulas = 6 %}
 
         {% for aula in aulas %}
         <div class="box">