need for "see also" section or similar thing at hub pages

The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/12/functions-textsearch.html
Description:

A suggestion. This page, "functions-textsearch", is fine, and the best
place to explain functions like array_to_tsvector() and jsonb_to_tsvector().
The suggestion is just to cite these native functions in the Guide's "hub
page" of respective prefixes...

Ideal, for Guide reader, is to be informed about the existence of all array
functions in the Array's hub page,
https://www.postgresql.org/docs/current/functions-array.html , and all JSON
functions in the JSON's hub page
https://www.postgresql.org/docs/current/functions-json.html

Simple citation anywhere in the hub page, or a simple "See also" section to
list the non-explained functions that can be also classifyed as valid
function for that hub page.