Incorrect value "CSV Import / `auto_type_candidates` Details" section

[ngdangtu-vn]

I think the document is a bit incorrect regard to type detection in read_csv function

Problem

Page with incorrect SQLNULL value: https://duckdb.org/docs/stable/data/csv/overview#auto_type_candidates-details

If we try to use this value in a query, it will break the query.

Expected

The correct value is NULL: https://duckdb.org/docs/stable/data/csv/auto_detection#type-detection

* This problem exists since v1.0 doc (I think before 0.10.2, it is a valid keyword? : https://r.duckdb.org/news/index.html#features-0-10-2)

=> Should I correct all the versions except 0.10?