VuePress增加备案号

首页---描述里增加如下代码即可

---
footer: "Apache-2.0 Licensed | Copyright © 2020 
  <br>
  <a href='https://beian.miit.gov.cn' target='_blank' style='color: var(--c-text-lighter);'>待备案号</a>"
footerHtml: true
---

效果展示

Apache-2.0 Licensed | Copyright © 2020
               待备案号