Lychee is a [Rust based](https://lychee.cli.rs) async parallel link checker. I ran it against the codebase to suss out stale links and fixed those up. There's currently 2 remaining cases that I don't know how to resolve: 1. https://flathub.org/apps/dev.zed.Zed - nginx is giving a 502 bad gateway 2. https://github.com/zed-industries/zed/actions/workflows/ci.yml/badge.svg - I don't want to mess with the CI pipeline in this PR. Once again, I'll punt to the Docs Czar to see if this gets incorporated into CI later. --- ## Running `lychee` locally: ``` cargo binstall -y lychee lychee . ``` --- Release Notes: - N/A Signed-off-by: mrg <miguelraz@ciencias.unam.mx>