- width
 (default 80):  The width of the output page.
 
    - minIndent
 (default 10):  The minimum indent to use in a list.
 
    - extraIndent
 (default 4):  The extra indent to use in each
      level of nested lists.
 
    - sectionIndent
 (default 5):  The indent level for a section.
 
    - sectionExtra
 (default 2):  The extra indentation for each
      nested section level.
 
    - itemBullet
 (default "* ", with the asterisk replaced by a
      Unicode bullet in UTF-8 and most Windows locales):
      The symbol to use as a bullet in itemized lists.
 
    - enumFormat
 :  A function to format item numbers in enumerated lists.
 
    - showURLs
 (default FALSE):  Whether to show URLs when
      expanding \href tags.
 
    - code_quote
 (default TRUE):  Whether to render
      \code and similar with single quotes.
 
    - underline_titles
 (default TRUE):  Whether to render
      section titles with underlines (via backspacing).