Missing license file in mpsc_requests-0.3.3.crate

[wojnilowicz]

LICENSE is missing in mpsc_requests-0.3.3.crate downloaded from https://crates.io/crates/mpsc_requests. I would like to package it as a rpm for Fedora (which identifies missing license as a mistake and encourages upstream to include it) and it would make it easier. Could you add the license file at https://github.com/wojnilowicz/mpsc_requests/blob/add-license/LICENSE to https://github.com/johan-bjareholt/mpsc_requests ? I cannot make a PR there, because the repository is already archived. Thanks for any help.