Incorrect link tohttps://www.postgresql.org/docs/current/indexes-functional.html ?

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/15/indexes-expressional.html
Description:

Hi, nice to meet you.

I found incorrect link to
https://www.postgresql.org/docs/current/indexes-functional.html on this page
 https://www.postgresql.org/docs/7.3/indexes-functional.html. The text is
"...the same page for the current version...".

Is "functional index"  in version 7.3 (or earlier) equivalent to the
"Indexes on Expressions" in the current version? 
If so, is correct URL
https://www.postgresql.org/docs/current/indexes-expressional.html ?

Would you  check and correct it?

Thank you in advance.