message: Small markdown cleanup
diff: //! A Rust client for the NATS.io ecosystem.
  //!
  -//! <code>git clone https://github.com/nats-io/nats.rs</code>
  +//! `git clone https://github.com/nats-io/nats.rs`
  //!
  //! NATS.io is a simple, secure and high performance open source messaging system for cloud native applications,
  //! IoT messaging, and microservices architectures.
  // over time, consider enabling the following commented-out lints:
  // clippy::else_if_without_else,
  // clippy::indexing_slicing,
  + // clippy::multiple_crate_versions,
  clippy::cast_lossless,
  clippy::cast_possible_truncation,
  clippy::cast_possible_wrap,
  clippy::mem_forget,
  clippy::missing_const_for_fn,
  clippy::module_name_repetitions,
  - clippy::multiple_crate_versions,
  clippy::multiple_inherent_impl,
  clippy::mut_mut,
  clippy::needless_borrow,
  