[Feature] consider file link start with / as absolute path base on repository dir like github

[hanjie-chen]

if I want to use absolute path which based on repository, I failed.
for example, here is my directory:

PS C:\Users\Plain\PersonalArticles
...
├───template
│   ├───images
│   │   └───cover_image.jpeg
│   └───Article_Template.md
├───tools-guide
│   ├───git-guide
│   │   ├───images
│   │   │   └───cover_image.png
│   │   └───git-usage.md
...
└───README.md

usually, I use relative path to show image for example in Article_Template.md, for example I will use ./images/cover_image.jpeg.

when I want to link file git-usage.md, I want to use like that /tools-guide/git-guide/git-usage.md which is work on github, you can test it in here: https://github.com/hanjie-chen/PersonalArticles/blob/main/template/Article_Template.md

But when I try it in local, it shows following error message:

Cannot open location /tools-guide/git-guide/git-usage.md, would you want to create file at /tools-guide/git-guide/git-usage.md and continue?

which use absolute path base on C:\ actually

My troubleshoot:

I check the typora document about the links: https://support.typora.io/Links/
it shows expected behavior:

[Readme4](/User/root/Docs/Readme1.md)

when I want to find out a solution, it seems it only works image https://support.typora.io/Images/#display-images-in-relative-path
use typora-root-url in YAML, I test it in my environment, it only works for image.

and it seems there is a typora-plugin named redirectLocalRootUrl have same effect, but also only work for images (I also test it in my personal environment): obgnail/typora_plugin#259

consider

if we need use / as absolute path base on project dir, there must be somewhere to type repository dir