Broken paths in README.md

Hello,

I have some trouble when I include images in the notebook index.ipynb.

The structure of the folders I am using is as follows:

- main folder
*nbs folder
- library
- figures

My index.ipynb is in nbs folder and in this document I refer to figures in the figures folder through the path `./figures/xxx.png'.

This works well in the documentation but in the autogenerated file README.md the paths to the images are broken. When I open the README.md, I see that the paths are taken as absolute paths instead of relative paths and this would explain the issue.

What would be the best way to fix it?

Thank you very much!

Alexandre