The Table Directives markup does not currently support markup to generate <th> tags. This recipe adds (:head:) and (:headnr:) markup.
To use this markup inside a (:table:) … (:tableend:) block, write:
|This is a heading that starts a new row||This is another heading
Do not put the heading text on a separate line; if you do, the PDF will not work correctly.
Contributor:John Rankin, Wednesday, 31 October 2007