Show HN: Health medical messaging with ER7 pipe-hat and Rust

I'm working on health medical messaging using Rust to parse the worldwide standard ER7 pipe-hat format.

ER7 message parsing Rust crate:

https://crates.io/crates/er7

I'm seeking advice about what would help improve the README examples, to make it easier or better to use in your own HL7 health care projects.

Source is https://github.com/er7-rust/er7-rust