Methods/package_info()/cpp_info and Attributes/cpp_info mismatch

Hi,

I noticed a discrepancy between cpp_info data on the Methods (package_info() subsection) page and Attributes page. Don't have time currently to compare and understand the full scope of this, but the thing I noticed was that the Attributes page contains a `builddirs` reference, while the Methods page does not.

[Methods](https://docs.conan.io/en/latest/reference/conanfile/methods.html#package-info) and [Attributes](https://docs.conan.io/en/latest/reference/conanfile/attributes.html#cpp-info) page links.

Regards,
Alex