Please see the instructions on the dart_data repository
These instructions cover contributions to the website code.
You'll need to join GitHub to contribute.
If you are not familiar with the code, you can always open an Issue. There you can report your proposed feature in detail, or the bug you encountered in detail, and the issue can be investigated.
To add a pull request implementing changes to the repository, fork this project to your own account, make whatever changes you'd like, then open up all pull request for review.
When evaluating a submission, a project developer will look for conformance with PEP-8 (and perhaps soon a Black compliant submission)
Once the PR is approved, a developer can go about integrating it into the master branch.
Data in this repository - including any merged user contributions - is licensed under MIT. Please see LICENSE.txt for details.