#2 link to printenv.pl should be .cgi

[Augustus Saunders]

In the index.html that's automatically set up in the
fox/www directory, the link to the sample cgi script
goes to /cgi-bin/printenv.pl. While this file does
exist in the apache/cgi-bin/ directory, it's called
printenv.cgi in the /scripts/cgi-bin/ directory. It's
probably a good idea to mention that /scripts/cgi-bin/
is where cgi is enabled by default right next to the link.

Augustus