Disambiguate with relative paths

[lovette]

I have a structure similar to this (but much larger with dozens of duplicate file names.)

- runtime/
  - index.md
  - foo.md
- arch/
  - index.md
  - foo.md

I was hoping each index.md could cross link to foo.md with relative paths like ./foo.md or runtime/foo.md and arch/foo.md but it appears that doesn't work. I still have to use ../runtime/foo.md, etc.

Would be a nice feature!