Affected documentation: https://docs.marimo.io/guides/working_with_data/dataframes/#__tabbed_1_2

Polars read_json() cannot read from a URL. Documentation: https://docs.pola.rs/api/python/dev/reference/api/polars.read_json.html

📝 Summary

The current implementation throws the following error:

FileNotFoundError
No such file or directory (os error 2): https://raw.githubusercontent.com/vega/vega-datasets/master/data/cars.json

The fix does not introduce new dependencies.

Screenshot:

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✅ Merge Checklist

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