docs: update readme badges

Author: threeal

README.md

@@ -1,8 +1,10 @@
 # Keisan
 
-[![latest version](https://img.shields.io/github/v/release/ichiro-its/keisan.svg)](https://github.com/ichiro-its/keisan/releases/)
-[![license](https://img.shields.io/github/license/ichiro-its/keisan.svg)](./LICENSE)
-[![build and test status](https://github.com/ichiro-its/keisan/actions/workflows/build-and-test.yml/badge.svg)](https://github.com/ichiro-its/keisan/actions)
+[![latest version](https://img.shields.io/github/v/release/ichiro-its/keisan)](https://github.com/ichiro-its/keisan/releases/)
+[![commits since latest version](https://img.shields.io/github/commits-since/ichiro-its/keisan/latest)](https://github.com/ichiro-its/keisan/commits/master)
+[![milestone](https://img.shields.io/github/milestones/progress/ichiro-its/keisan/1?label=milestone)](https://github.com/ichiro-its/keisan/milestone/1)
+[![license](https://img.shields.io/github/license/ichiro-its/keisan)](./LICENSE)
+[![test status](https://img.shields.io/github/workflow/status/ichiro-its/keisan/Build%20and%20Test?label=test)](https://github.com/ichiro-its/keisan/actions)
 
 Keisan is a [ROS 2](https://docs.ros.org/en/foxy/index.html) package that provides a math equations and algorithms library for a ROS 2 project.