Address comments

Author: minggangw

.prettierignore

@@ -0,0 +1,4 @@
+# Prettier pads Markdown table separators to match cell width, which bloats
+# long-URL badge tables.  Exclude root READMEs to keep them minimal.
+README.md
+scripts/npmjs-readme.md

README.md

@@ -7,8 +7,8 @@
 [![node](https://img.shields.io/node/v/rclnodejs)](https://nodejs.org/en/download/releases/)
 [![TypeScript](https://img.shields.io/npm/types/rclnodejs)](https://www.npmjs.com/package/rclnodejs)
 
-|                                                             **ROS 2 Distro**                                                             |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  **CI Status**                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
-| :--------------------------------------------------------------------------------------------------------------------------------------: | :-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------: |
+| **ROS 2 Distro** | **CI Status** |
+| :---: | :---: |
 | [![ROS 2](https://img.shields.io/badge/ROS%202-Humble%20%7C%20Jazzy%20%7C%20Kilted%20%7C%20Rolling-blue?logo=ros)](https://www.ros.org/) | [![Linux x64](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-x64-push-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-x64-push-test.yml?query=branch%3Adevelop)<br>[![Linux arm64](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-arm64-push-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-arm64-push-test.yml?query=branch%3Adevelop)<br>[![Windows](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-push-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/windows-push-test.yml?query=branch%3Adevelop)<br>[![ASan](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-x64-asan-test.yml/badge.svg?branch=develop)](https://github.com/RobotWebTools/rclnodejs/actions/workflows/linux-x64-asan-test.yml?query=branch%3Adevelop) |
 
 **rclnodejs** is a Node.js client library for [ROS 2](https://www.ros.org/) that provides comprehensive JavaScript and TypeScript APIs for developing ROS 2 solutions.