Suggestion for docs, section "4.2.3 Subscripts": bounds and base

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/17/sql-expressions.html
Description:

I skimmed over section 4.2 while waiting for a meeting to start and found no
mention of the following two questions that immediately pop up in my mind
when subscripts are mentionned:

Are subscripts 0-based or 1-based?
Are slice boundaries inclusive or exclusive?

Suggestion:
...
`expression[subscript]`
where by default the subscript is counted from 1. A contiguous slice of
array elements can be extracted by using the subscript of the first and last
element to be included in the slice:
`expression[first_included_subscript:last_included_subscript]`

Regards,
s.