The Source repo uses two submodules, the EpiDoc Example Stylesheets, and the TEI Stylesheets. To clone a copy, run:
git clone --recurse-submodules git@github.com:EpiDoc/Source.gitIf you cloned without the --recurse-submodules flage, then (inside the Source repo) run:
git submodule update --init --recursiveThe submodules can be updated as needed using the git submodule update --recursive command. Or you can change to the submodule directory and run git pull.