Mercurial's documentation is kept in reStructuredText format, which is
a simple plain text format that's easy to read and edit:
 
  http://docutils.sourceforge.net/rst.html
 
It's also convertible to a variety of other formats including standard
UNIX man page format and HTML. You'll need to install Docutils:
 
  http://docutils.sourceforge.net/
 
Use the Makefile in this directory to generate the man and HTML pages.