default npm registry https://registry.npmjs.org/
MDN Web https://developer.mozilla.org/
前端开发者手册 http://caibaojian.com/fedbook/
normalize.css https://necolas.github.io/normalize.css/ / file: v8.0.1
reset.css https://meyerweb.com/eric/tools/css/reset/ / file: v2.0
| jQuery https://jquery.com/ / file: v3.7.0 | v3.7.0.min |
marked https://unpkg.com/marked@6.0.0/marked.min.js
屏幕拾色器 file