some fixes

aircox_cms/templates/aircox_cms/sections/section_item.html

@@ -1,8 +1,10 @@
 <section class="section_item {{ self.css_class }} {{ self.snake_name }}">
+    {% block section_content %}
     {% block title %}
     {% if self.show_title %}<h2>{{ self.title }}</h2>{% endif %}
     {% endblock %}
     {% block content %}{{ content|safe }}{% endblock %}
+    {% endblock %}
 </section>