4.1 Introduction
 4.2 Element names and cross-referencing
  4.2.1 Element name conventions
  4.2.2 Cross referencing: the link tag
 4.3 Tag reference
  4.3.1 Overview
  4.3.2 b : format bold
  4.3.3 caption : Specify table caption
  4.3.4 code : format as pascal code
  4.3.5 descr : Descriptions
  4.3.6 dd : definition data.
  4.3.7 dl : definition list.
  4.3.8 dt : definition term.
  4.3.9 element : Identifier documentation
  4.3.10 errors : Error section.
  4.3.11 fpdoc-description : Global tag
  4.3.12 i : Format italics
  4.3.13 img : include image
  4.3.14 li : list element
  4.3.15 link : Cross-reference
  4.3.16 module : Unit reference
  4.3.17 ol : Numbered list.
  4.3.18 p : Paragraph
  4.3.19 package : Package reference
  4.3.20 pre : Insert text as-is
  4.3.21 printshort : insert short description
  4.3.22 remark : format as remark
  4.3.23 seealso : Cross-reference section
  4.3.24 short : Short description
  4.3.25 table : Table start
  4.3.26 td : Table cell
  4.3.27 th : Table header
  4.3.28 topic : Topic section
  4.3.29 tr : table row
  4.3.30 u : Format underlined
  4.3.31 ul : bulleted list
  4.3.32 url : Hyperlink
  4.3.33 var : variable
  4.3.34 version : version info