message: doc(c-api) Improve the documentation of the `wasm_c_api` module.
diff: -//! Entrypoints for the standard C API
  +//! Implementation of the [official WebAssembly C
  +//! API](https://github.com/WebAssembly/wasm-c-api) for Wasmer.
  +//!
  +//! We would like to remind the reader that this official standard can
  +//! be characterized as a _living standard_. As such, the API is not
  +//! yet stable, even though it shows maturity over time. The API is
  +//! described by the `wasm.h` C header, which is included by
  +//! `wasmer_wasm.h` C header file (which contains extension of the
  +//! standard API, for example to provide WASI or vendor-specific
  +//! features).
  #[macro_use]
  pub mod macros;
  