This WordPress plugin by exz will add a dynamic humans.txt file generated from a template that you’ll define yourself.
humans.txt is a file placed in website files that makes people aware of the people behind a website. It contains information about the different people who have contributed to building the website.
The plugin uses a template format which you can define yourself to add the information you’d like to your humans.txt file. This plugin currently supports the following template tags:
Active plugins (name, uri, version, description, author, author uri)
Blog authors (login name, display name, email)
PHP version
WP version
Current theme (name, description, author, author uri, version, parent)
Number of posts (published, future, drafts, pending, private)
Number of pages (published, future, drafts, pending, private)
Download plugin and info: http://wordpress.org/extend/plugins/humans-dot-txt/
More info at: http://humanstxt.org/