Using a markdown formatter for (doc) comments & wrapping

Are there any thoughts on using an off-the-shelf markdown formatter to handle doc comments? Specifically comrak which is quite popular and (I believe) has a compatible license.

Reasoning is that it seems like needs are slowly approaching a full markdown-aware formatter. Things like preserving list items (#5746) or maintaining table format are important but tricky to handle without one.

Just a sample from #5746, using comrak configured to line length 80 - note that text is wrapped but indentation and code are both preserved

Input:
//! - References?
//!   - Unsound. See this example:
//!     ```compile_fail
//!     # use core::mem::MaybeUninit;
//!     let mut a = 0;
//!     let b = maybe_uninit_ext::new::<&mut MaybeUninit<u8>>(&mut a);
//!     *b = maybe_uninit_ext::uninit();
//!     assert_eq!(a, 0); // undefined behavior! a is uninitialized.
//!     ```
//!     Due to interior mutability, this is an issue for immutable references
//!     as well.
//!
//!     Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean felis ipsum, mollis non
//!     malesuada quis, tincidunt a orci. Aliquam erat volutpat. Nullam dui diam, sollicitudin
//!     sed nulla ut, efficitur tempus mauris. Fusce consequat posuere nisl vitae consequat. Vivamus mattis porttitor sapien,
//!     sit amet interdum velit varius quis. Integer est dolor, interdum ultrices elementum
//!     vitae, porttitor sit amet ligula. Fusce ullamcorper sed velit nec dictum.

Output:
//! - References?
//!   - Unsound. See this example:
//!     ``` compile_fail
//!     # use core::mem::MaybeUninit;
//!     let mut a = 0;
//!     let b = maybe_uninit_ext::new::<&mut MaybeUninit<u8>>(&mut a);
//!     *b = maybe_uninit_ext::uninit();
//!     assert_eq!(a, 0); // undefined behavior! a is uninitialized.
//!     ```
//!     Due to interior mutability, this is an issue for immutable references as
//!     well. //\! Lorem ipsum dolor sit amet, consectetur adipiscing elit. Aenean
//!     felis ipsum, mollis non malesuada quis, tincidunt a orci. Aliquam erat
//!     volutpat. Nullam dui diam, sollicitudin sed nulla ut, efficitur tempus
//!     mauris. Fusce consequat posuere nisl vitae consequat. Vivamus mattis
//!     porttitor sapien, sit amet interdum velit varius quis. Integer est dolor,
//!     interdum ultrices elementum vitae, porttitor sit amet ligula. Fusce
//!     ullamcorper sed velit nec dictum.

Edit with more context

Originally suggested at https://github.com/rust-lang/rustfmt/issues/3347#issuecomment-1493136462 because it seems like we do a lot of things that need to be markdown-aware (wrapping comments and doc comments, formatting doc comments), and doing this all manually seems more tedious than using a tool designed to do this exact thing.

Start by reading this proposal alongside issue #5746 and the referenced rustfmt discussion. Compare the requested doc-comment wrapping and Markdown preservation behavior with comrak's capabilities, then determine the project scope and acceptance criteria before implementation.