message: Improved ExportError comments a bit more
diff: @@ -16,9 +16,11 @@ use wasmer_runtime::Export;
  ///
  /// // This results with an error: `ExportError::IncompatibleType`.
  /// let missing_import: &Global = my_instance.exports.get("func")?;
  +/// let missing_import = my_instance.exports.get_global("func")?;
  ///
  /// // This results with an error: `ExportError::Missing`.
  /// let missing_import: &Function = my_instance.exports.get("unknown")?;
  +/// let missing_import = my_instance.exports.get_function("unknown")?;
  /// ```
  #[derive(Error, Debug)]
  pub enum ExportError {
  