Hexo Butterfly主题添加备案号

方法一

修改 主题配置文件

footer:
  owner:
    enable: true
    since: 2023
  custom_text:
    - <a href="https://beian.miit.gov.cn"><img class="icp-icon" src="https://img2023.cnblogs.com/blog/2233039/202406/2233039-20240628094344063-1258370504.png"><span>xICP备xxx号-x/span></a>
  copyright: true # Copyright of theme and framework

效果如下

方法二

修改 themes/butterfly/layout/includes/footer.pug，添加以下代码

<img src="https://img2023.cnblogs.com/blog/2233039/202406/2233039-20240628094344063-1258370504.png" style="vertical-align: middle;" height="20px">
 <a href="http://beian.miit.gov.cn/"  style="color:#f72b07" target="_blank">XICP备xxxxxxx-x</a>