update docker proxy

Update README.md

fix docker hub 429 status

Refactor docker.js to use custom domain routing

Update README with Docker Hub rate limiting note

Replace Creative Commons license with GPL v3

Update README.md

Update worker.js

Update README.md

Update docker.js

Update worker.js

Update worker.js

Update README.md

Update worker.js

Merge pull request #3 from nowanti/main