#3 [Example/Bug] Improve doc_example

#[derive(Debug)]
struct Person {
  ...
}

It doesn't have Person derive Debug to quickly print out the Person's fields (As such the println ends up doing what Debug would do, less clean) It's a simple fix... ```rust #[derive(Debug)] struct Person { ... } ``` Maybe moving the comment about not needing to derive Clone, or remove it as Clone is unneeded