BUG FIX

[jianxin-yuan]

修复 permalink=:abbrlink.html 时图片显示异常 permalink: :abbrlink.html --> http://localhost:4000/blog/3632233996.html permalink: :abbrlink/ --> http://localhost:4000/blog/3632233996/ permalink: :year/:month/:day/:title/ --> http://localhost:4000/blog/2019/10/11/test/ permalink: :year/:month/:day/:title/index.html --> http://localhost:4000/blog/2019/10/11/test/index.html 这几中情况时图片均可正常显示 #21 修复 站点运行在子目录下时 图片显示异常 root: /blog/ 配置时可正常显示 #52

[songjinghe]

实测permalink: :title.html时可行