Images cannot display when export md to pdf

[miguehm]

Hello there! I tried to export a note like this:

![Mi image](gallery/photo.png)

using nb export hw/4 my_doc.pdf I get this message

[WARNING] Could not fetch resource gallery/photo.png: replacing image with description

and the images does not display in my pdf, with nb export pandoc hw/4 my_doc.pdf get the same result, but when I go to .nb/notebook/hw folder and execute pandoc note.md -o ~/my_doc.pdf the document is export and the image shows correctly.