message: doc(engine) Fix link to the example + reformat.
diff: The `wasmer-engine` crate is the general abstraction for creating Engines in Wasmer.
  Wasmer Engines are mainly responsible for two things:
  -* Transform the compilation code (from any Wasmer Compiler) to **create** an `Artifact`
  -* **Load** an`Artifact` so it can be used by the user (normally, pushing the code into executable memory and so on)
  +* Transform the compilation code (from any Wasmer Compiler) to
  + **create** an `Artifact`,
  +* **Load** an`Artifact` so it can be used by the user (normally,
  + pushing the code into executable memory and so on).
  It currently has two implementations:
  -* [JIT](https://github.com/wasmerio/wasmer-reborn/tree/master/lib/engine-jit)
  -* [Native](https://github.com/wasmerio/wasmer-reborn/tree/master/lib/engine-native)
  +1. JIT with [`wasmer-engine-jit`],
  +2. Native with [`wasmer-engine-native`].
  ## Example Implementation
  -Please check [`wasmer-engine-dummy`](../../tests/lib/engine-dummy/) for an example
  -implementation for an Engine.
  +Please check [`wasmer-engine-dummy`] for an example implementation for
  +an `Engine`.
  ### Acknowledgments
  -This project borrowed some of the code of the trap implementation from the [wasmtime-api](https://crates.io/crates/wasmtime), the code since then has evolved significantly.
  +This project borrowed some of the code of the trap implementation from
  +the [`wasmtime-api`], the code since then has evolved significantly.
  -Please check [Wasmer ATTRIBUTIONS](https://github.com/wasmerio/wasmer/blob/master/ATTRIBUTIONS.md) to further see licenses and other attributions of the project.
  +Please check [Wasmer `ATTRIBUTIONS`] to further see licenses and other
  +attributions of the project.
  +
  +
  +[`wasmer-engine-jit`]: https://github.com/wasmerio/wasmer-reborn/tree/master/lib/engine-jit
  +[`wasmer-engine-native`]: https://github.com/wasmerio/wasmer-reborn/tree/master/lib/engine-native
  +[`wasmer-engine-dummy`]: https://github.com/wasmerio/wasmer-reborn/tree/master/tests/lib/engine-dummy
  +[`wasmtime-api`]: https://crates.io/crates/wasmtime
  +[Wasmer `ATTRIBUTIONS`]: https://github.com/wasmerio/wasmer/blob/master/ATTRIBUTIONS.md
  