message: doc(middlewares) Format.
diff: # Wasmer Middlewares
  -The `wasmer-middlewares` crate is a collection of various useful middlewares:
  +The `wasmer-middlewares` crate is a collection of various useful
  +middlewares:
  -- `metering`: A middleware for tracking how many operators are executed in total and putting a limit on the total number of operators executed.
  +- `metering`: A middleware for tracking how many operators are
  + executed in total and putting a limit on the total number of
  + operators executed.
  