Using subdir=... when tagging uses the wrong description

[tpoisot]

Something I've noticed working on a monorepo is that using @\JuliaRegistrator register subdir="foo" will open the correct pull request for the package located at foo, but using the description of the Project.toml located at the root, and not in foo/Project.toml.

This isn't a massive problem (everything works), but the packages metadata are wrong as they inherit the wrong description field.

[cortner]

What would happen if there is not Project.toml in the root, but only in the subdir?