Address comments

Author: minggangw

README.md

@@ -2,12 +2,12 @@
 
 [![npm](https://img.shields.io/npm/v/rclnodejs.svg)](https://www.npmjs.com/package/rclnodejs)[![Coverage Status](https://coveralls.io/repos/github/RobotWebTools/rclnodejs/badge.svg?branch=develop)](https://coveralls.io/github/RobotWebTools/rclnodejs?branch=develop)[![npm](https://img.shields.io/npm/dm/rclnodejs)](https://www.npmjs.com/package/rclnodejs)[![GitHub license](https://img.shields.io/github/license/RobotWebTools/rclnodejs.svg)](https://github.com/RobotWebTools/rclnodejs/blob/develop/LICENSE)[![node](https://img.shields.io/node/v/rclnodejs.svg)](https://nodejs.org/en/download/releases/)[![npm type definitions](https://img.shields.io/npm/types/rclnodejs)](https://www.npmjs.com/package/rclnodejs)[![code style: prettier](https://img.shields.io/badge/code_style-prettier-ff69b4.svg?style=flat-square)](https://github.com/prettier/prettier)
 
-| **ROS Distro¹** |                                                                                                                                                                                                                                                         **Status**                                                                                                                                                                                                                                                          |
-| :-------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
-|     Rolling     |                   [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Adevelop) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Adevelop)                   |
-|     Kilted      |                     [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=kilted)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Akilted) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=kilted)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Akilted)                     |
-|      Jazzy      |                       [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=jazzy)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Ajazzy) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=jazzy)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Ajazzy)                       |
-|     Humble      | [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=humble-hawksbill)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Ahumble-hawksbill) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=humble-hawksbill)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Ahumble-hawksbill) |
+| **ROS Distro\*** |                                                                                                                                                                                                                                                         **Status**                                                                                                                                                                                                                                                          |
+| :--------------: | :-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
+|     Rolling      |                   [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Adevelop) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Adevelop)                   |
+|      Kilted      |                     [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=kilted)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Akilted) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=kilted)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Akilted)                     |
+|      Jazzy       |                       [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=jazzy)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Ajazzy) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=jazzy)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Ajazzy)                       |
+|      Humble      | [![Linux](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml/badge.svg?branch=humble-hawksbill)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-build-and-test.yml?query=branch%3Ahumble-hawksbill) [![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml/badge.svg?branch=humble-hawksbill)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-build-and-test.yml?query=branch%3Ahumble-hawksbill) |
 
 \* rclnodejs development and maintenance is limited to the ROS 2 LTS releases and the Rolling development branch