The jq website, manpages and some of the tests are generated from this directory. The manual is a YAML file in content/manual.
To build the documentation (including building the jq manpage), you'll need python3 and pipenv. You can install pipenv like so:
pip install pipenv
Though, you may need to say pip3 instead, depending on your system. Once you have pipenv installed, you can install the dependencies by running pipenv sync from the docs/ directory.
Also, you may need to run virtualenv -p /usr/bin/python3 venv/ and then source venv/bin/activate, and only then pipenv sync.
Once this is done, rerun ./configure in the jq root directory and then the Makefile will be able to generate the jq manpage. You can just run make jq.1 to build the manpage manually, and make tests/man.test to update the manual tests.
To build the website, run pipenv run python3 build_website.py --root /output in the docs/ directory. To serve them locally, you can run python3 -m http.server.