message: doc(es/codegen): Document `ascii_only`
diff: @@ -13,6 +13,9 @@ pub struct Config {
  /// This is because it's not a concern of the code generator.
  pub target: EsVersion,
  + /// Forces the code generator to use only ascii characters.
  + ///
  + /// This is useful for environments that do not support unicode.
  pub ascii_only: bool,
  pub minify: bool,
  