Squiffy documentation is now online at
http://docs.textadventures.co.uk/squiffy/I've taken what was in the README on GitHub and adapted it into easier-to-read pages. I've also fleshed out the installation and usage instructions, so hopefully it's easier to pick up now.
Let me know if anything could be made clearer, and of course feel free to send a pull request for any changes - the documentation source is in the gh-pages branch at GitHub:
https://github.com/textadventures/squiffy/tree/gh-pagesAlso, I've added a development roadmap so you can see my current plans for Squiffy releases:
http://docs.textadventures.co.uk/squiffy/roadmap.html. I'd welcome any comments!