404 - Not found - Unable to add .ipynb as blogpost

[BirdiD]

Describe the bug
Hello,
I am trying to add a notebook to my wordpress blog using this shortcode

[git-github-jupyter url="https://github.com/cawoylel/nlp4all/blob/main/asr_tutorial.ipynb"]

I'm getting a 404 - Not found. When I replace the notebook by the readme.md file at the same GitHub repository, it works.

Have someone encountered something like this ?

[igs3000]

Same 404 error for ".ipynb"

[ivanistheone]

Same for me.

I guess something changed in the GitHub APIs in the last three years so this plugin doesn't work anymore.
Too bad... it seemed like an elegant solution.