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.
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.