The original of that documentation file
is maintained on the
OpenTravelData (OPTD) project,
within the ci-scripts directory.
OPTD produces (at least) two kinds of (mainly CSV) data files:
opentraveldata folder,opentraveldata/optd_por_public_all.csvopentraveldata/optd_airlines.csvThe deployment/release itself is managed through Travis CI,
specified in the .travis.yml YAML file.