message: Point to `native` versions of functions in Function docs
diff: @@ -69,6 +69,9 @@ pub struct Function {
  impl Function {
  /// Creates a new host `Function` (dynamic) with the provided signature.
  ///
  + /// If you know the signature of the host function at compile time,
  + /// consider using [`Function::new_native`] for less runtime overhead.
  + ///
  /// # Examples
  ///
  /// ```
  @@ -134,6 +137,10 @@ impl Function {
  /// Creates a new host `Function` (dynamic) with the provided signature and environment.
  ///
  + /// If you know the signature of the host function at compile time,
  + /// consider using [`Function::new_native_with_env`] for less runtime
  + /// overhead.
  + ///
  /// # Examples
  ///
  /// ```
  