Include multiple files from a directory

[raffomania]

I have a folder full of documentation I'd like to test using doc_comment. At the moment, I have to include every file explicitly:

doctest!("../docs/README.md");
doctest!("../docs/conventions.md");
doctest!("../docs/database.md");
doctest!("../docs/testing/mocks.md");
// ...

I'd love a way to include all files from a folder, maybe using globs or by specifying file extensions:

doctest_directory!("../docs/**/*.md");

Could you imagine such a feature for doc_comment? Do you know of another way to do this conveniently?

[GuillaumeGomez]

That could be a nice addition indeed.