Improve expressions.md #5977
Description
Is your feature request related to a problem or challenge?
In the file "user-guide/expressions.md" there are a lot of empty lines in category "Notes". I think the detailed documentation helps user to understand the basic functions and their differences from analogues from other query engines.
Describe the solution you'd like
Clear and beautiful documentation with examples.
Describe alternatives you've considered
No response
Additional context
No response