There is no complete documentation yet. However, you can follow the project on twitter, read the blog, write in the forum, or come chat with us on Freenode #tuxfh.
Manually :
PATH="~/.local/bin/:$PATH" # If it's not already done yet
python3 setup.py install
# Create a SQLite DB and fill it with default data
python3 tfh.py -c development.ini initdb
# Start the web application
pserve development.ini
Or with a little script by Edelwin : https://gist.github.com/Edelwin/7857978