- Fix broken contributing link
- Replace license text with link to license file
- Sort links alphabetically
- Add Link to repository (for on Docker Hub)
- Add shield for Docker image size

s to enhance links, shields, and formatting

Key changes include replacing inline links with reference-style links, adding missing badges, updating outdated links, and reformatting sections for a standardized presentation. It also adjusts license and contribution details for better readability.

⏫ Updates actions/checkout action to v5

See merge request !72