Some question about markdown normal and image hyperlinks

[Evil-crow]

I've used docsify to build my own wiki, but have questions about markdown hyperlinks.
But I don't know how to set resources root- directory in docsify.
I don't deploy wiki on server, but only Github Pages, means I can't use Nginx or other web-server to set resource root-directory.
I've found that normal document hyperlinks must use absolute link,
relative link can be used when set "relativePath: true", but this will make sideBar something goes wrong.
And image now only can use will use relative path in markdown.
Is there any way to use absolute path or relative path at the same time?
As I known, gitbook-cli can use absolute path and relative path easily ?