when we use markdown to wirte link, it usually be like this:
[hexo-hrefmd 's readme](https://github.com/Rozbo/hexo-hrefmd/blob/master/README.md)but in hexo, they will be a error 404 in the page. because the ext .md can't be location.
so I made this plugin.
easy use in:
$ npm install hexo-hrefmd --save