updates

docs/build_docs.py

setup.py

src/coursebox.egg-info/PKG-INFO

src/coursebox/book/irlc_main.py.pclprof

src/coursebox/core/info.py

src/coursebox/core/info_paths.py

src/coursebox/core/projects_info.py

src/coursebox/material/homepage_lectures_exercises.py

src/coursebox/thtools_base.py