jekyll config missing?

the README mentions jekyll has been configured to read the sources from `source` and put the result in `content`, but this does not seem to happen out-of-the-box for me. Is there a `_config.yml` missing?

Start by reading the README section describing Jekyll's source and output directories, then inspect the repository root for the referenced configuration. Verify whether a `_config.yml` is present and whether a standard Jekyll build reads from `source` and writes to `content`; done means the documented behavior works out of the box or the README accurately describes the setup.

Written by the indexing model from the issue text.