This is just a "readme" that web servers like Apache usually display when they index a directory.
Each directories contains all the documentation in several formats. Here is a description:
dvi/DVI Format, build by TeX.
Read with the command xdvi
htm/HTML format in single page.
Read with any web browser.
html/HTML format in several pages.
Read with any web browser.
info/Info format.
Read with the command info
lyx/LyX format. LyX is a WYSIWYM editor (What You See Is What You Mean)
Read with the lyx editor.
man/Man format. Pages de manuel Unix
Read with the man command
pdf/PDF format.
Read with the acroread software (alias Acrobat Reader)
ps/PostScript format.
Read with the gv software (alias GhostView)
rtf/RTF format.
Read with any text editor.
sgml/Format SGML.
Read with any text editor.
tex/Format TeX.
Read with any text editor.
txt/Format ASCII.
Read with any text editor like vi, nedit, emacs, notepad etc.
$Id: README.en.sgml,v 1.3 2000/12/03 03:16:52 gilles Exp $