While reading through the edition guide to find out what is new in Rust 2018
and these two pages seems to have repeated content
https://rust-lang-nursery.github.io/edition-guide/rust-2018/error-handling-and-panics/the-question-mark-operator-for-easier-error-handling.html
https://rust-lang-nursery.github.io/edition-guide/rust-2018/error-handling-and-panics/question-mark-in-main-and-tests.html
is this intentional?