================================================================================
sections
================================================================================
== Heading ==
=== Sub-heading ===
==== Sub-sub-heading ====

--------------------------------------------------------------------------------

(source
  (section
    (section_marker)
    (section_content)
    (section_marker))
  (section
    (section_marker)
    (section_content)
    (section_marker))
  (section
    (section_marker)
    (section_content)
    (section_marker)))

================================================================================
Equals signs used as dividers are not sections
================================================================================
%% Fairly common pattern, especially when preceeded by '%%%'
=====================================

--------------------------------------------------------------------------------

(source)
