doc: README.md

Author: wan2land

README.md

@@ -7,6 +7,8 @@
   <img alt="Language Typescript" src="https://img.shields.io/badge/language-Typescript-007acc.svg?style=flat-square" />
   <br />
   <a href="https://jsr.io/@denostack/timerider"><img alt="JSR version" src="https://jsr.io/badges/@denostack/timerider?style=flat-square" /></a>
+  <a href="https://www.npmjs.com/package/timerider"><img alt="NPM Version" src="https://img.shields.io/npm/v/timerider.svg?style=flat-square&logo=npm" /></a>
+  <a href="https://npmcharts.com/compare/timerider?minimal=true"><img alt="Downloads" src="https://img.shields.io/npm/dt/timerider.svg?style=flat-square" /></a>
 </p>
 
 A robust timer library for Deno that solves common issues with standard `setTimeout` and `setInterval`.