Merge branch 'master' into marimo-notebook

Author: brendaweles

duckdb/README.md

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+These files will allow you to work along with the [Introducing DuckDB](https://realpython.com/python-duckdb/) tutorial.
+
+The files are:
+
+- `duckdb_code.ipynb`: Contains the code you see in the tutorial.
+- `parties.json`: JSON file containing political party information.
+- `presidents.csv`: CSV file containing president information.
+- `presidents.parquet`: Parquet file containing president information.
+