Add blog post - Real-life Test Case Spark vs Polars

[ddotta]

Link to suggestion

https://dataengineeringcentral.substack.com/p/spark-vs-polars-real-life-test-case

Targeted section

Require a new section (please describe below)

Describe your suggestion

Spark vs Polars. Real-life Test Case. - A blog post in which the author tests whether Polars is able to handle "real amounts of data" and "really replace some production Spark workloads." by @danielbeach. Code used is available on Github here.

Checklist

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