How to make a redirect from the old page address to the new one in wordpress?

Question

WordPress

The crux of the problem is this. There are two dozen articles on the WordPress site, not records, but html articles. I want to redo it to look more cultured, the section in which the records are collected.
Now it looks like this:
- Novosti (links to all 20 articles are collected on this page)
- stania1
- stania2
- stania3
- stania4
, etc.
I want to do this:
- categoria/novosti
-- stania1
-- stania2
-- stania3
-- stania4
-- etc.
With page addresses, everything turns out fine, they will be saved, but the address of the page with links to these articles will disappear after all. The old page domen.ru/Novosti.html turns into a new address domen.ru/categoria/Novosti/
I feel that it is necessary to register some kind of redirect in .htaccess, so that from the old address it redirects immediately to the new one. If anyone knows how to do this, please help!