Revert "Simpler README for now. Closes #5"

This reverts commit f712d17b6173cb2151326aff7e7da0d47811711e.
Revert "Significantly simplify the bootstrap codebase, move prose configuration into _prose.yml"

This reverts commit 6d3191c08566a0eab5791be27896b6ec42c3f2cb.