The finn/ subfolder contains the documentation sources. This is built with Sphinx either by:

• online on readthedocs:
  • finn.readthedocs.io for the latest release
  • finn-dev.readthedocs.io for the dev branch
• manually inside the FINN Docker container with python setup.py docs

If you're looking for content that was hosted on the FINN project page with GitHub Pages, that has moved to the github-pages branch.