[x] CI must maintain multiple branches worth of docs: one for each major branch, one for the latest crates.io release
just use the toml version as a prefix and use symlinks/redirects?
[x] set up html_root_url per branch, add reminder to Cargo.toml
[x] examples/README missing from generation?
[ ] remove glib-signal crate from docs generation (rustdoc leaves old crate roots as-is, it's ancient and unused)
examples/READMEmissing from generation?glib-signalcrate from docs generation (rustdoc leaves old crate roots as-is, it's ancient and unused)