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\section{Module {\tt{Level\_0}} : Test for level 0 headings}
\label{Level-underscore0}\index{Level-underscore0@\verb`Level_0`}



  \subsection*{Level 1}



   Standard heading levels start at 1.


  \section{Level 0}

  A level 0 heading is guaranteed to be at the same level that
  the main heading of the module.


  This setup allows users to start their standard heading at level 1 rather
  than 2, without losing the ability to add global level heading,
  when, if ever, such heading is warranted



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