That looks good (not actually cloned and tried it yet).
However the screenshots in the README show (for me anyway) as broken links, even though they work when clicked on. I can see you're linking to the images in the blobs. If it helps, for my own stuff in the README I link relative to the README file in the actual source. So for one of yours for example I'd use: ./ubiblio_menu.png
This also has the advantages of both being self-contained and also working locally (eg in the VS Code preview) before you've pushed the images.