docs: update README.md

Author: morewings

README.md

@@ -2,7 +2,7 @@
 [![yarn version](https://badge.fury.io/js/css-vars-hook.svg)](https://www.npmjs.com/package/css-vars-hook)
 [![npm](https://img.shields.io/npm/dm/css-vars-hook)](http://npm-stats.org/#/css-vars-hook)
 [![types included](https://img.shields.io/github/package-json/types/morewings/css-vars-hook)](https://github.com/morewings/css-vars-hook)
-[![npm bundle size](https://deno.bundlejs.com/badge?q=css-vars-hook@latest&config={%22esbuild%22:{%22external%22:[%22react%22,%22react-dom%22]}})](https://bundlejs.com/?q=css-vars-hook@latest&config={%22esbuild%22:{%22external%22:[%22react%22,%22react-dom%22]}})
+[![npm bundle size](https://deno.bundlejs.com/badge?bundle&q=css-vars-hook@latest&config={"esbuild":{"external":["react","react-dom"]}})](https://bundlejs.com/?q=css-vars-hook@latest&config={"esbuild":{"external":["react","react-dom"]}})
 
 # CSS Variables React hook