Bug Report for sql-not-null-constraint

[Sedose]

Bug Report for: https://neetcode.io/problems/sql-not-null-constraint

Issue: On the page, the following sentence contains a typo:

A constraint in SQLis a rule that is enforced on a column

"SQLis" is missing a space between "SQL" and "is".

Corrected Text:

A constraint in SQL is a rule that is enforced on a column

Please fix this minor typo. Thank you!