Image in custom footer doesn't show up

Hello jupyter book, I am having an issue incorporating an image into the html-footer of my jupyter book.

Here is, what my _config.yml looks like:

html:
  extra_footer: |
    <p>
    <img src='img/logo.jpg' alt='Logo'>
    </p>
    
    
sphinx:
  config:
    html_show_copyright: false

I have made sure, I am using the correct path/filename/no typos etc. and I have tried other formats like bmp or png. But still nothing works. I cant get the image to appear in the footer.

Any ideas how to solve this?

P.S.: I am working on windows 10 pro and I have downgraded to python 3.7.10, since there is an issue with python 3.8 and windows.

[AndreGismo]

yes, the absolute path worked! Thanks for the tip!

Would it also be possible to use the URL of my github account where this image lies? So that my _config.yml would look like:

html:
  extra_footer: |
    <p>
    <img src='https://github.com/AndreGismo/<book-name>/img/logo.jpg' alt='Logo'>
    </p>
    
    
sphinx:
  config:
    html_show_copyright: false

[AndreGismo]

ah, and at the time it’s really just one page (made of a jupyter notebook) that is right in the root folder of the book (where the _config.yml and _toc.yml are), so there are no subfolders. The path is relative to this one page.