Update README.md

[melodysdreamj]

Description

Related Issues

• Closes #(add issue number)

Pre-launch Checklist

• I read the Contributor Guide and followed the process outlined there for submitting PRs.
• I updated pubspec.yaml with an appropriate new version according to the pub versioning philosophy, or this PR is exempt from version changes.
• I updated CHANGELOG.md to add a description of the change, following repository CHANGELOG style.
• I updated/added relevant documentation (doc comments with ///).
• All existing and new tests are passing.

Visual reference

[ricardodalarme]

Hey @melodysdreamj, first of all, thank you so much for your PR.

The idea of having an online demonstration of the package is awesome! However, having the deployment process outside this repository is not the best way to do it, because it will be hard to keep things in sync.

I'd love to have a GH workflow inside this repo to deploy it, so feel free to open a new PR with a different approach.

See you!