message: Add "cargo outdated" to release procedures.
diff: * Make sure website is updated and in-sync
  * rustfmt
  * clippy
  + * Ensure deps are up to date with `cargo outdated`
  * Search for and remove all `expect()` and `unwrap()` calls
  * Search for and address all `TODO` and `BUGGO` comments
  * Make sure readme is updated (should be the same as the top-level crate docs)
  