How to upload a site to Yandex Market with a .rf domain name?

Question

Domain name market

Good day.
Guys, can anyone suggest or give a link to a resource where it is indicated how to fill in the market site correctly, wrote in support, they said that you need to make a mirror from any other site to mine, but without a clue where to start and how to do it.
As I understand it, you need to:
1. Create a second site
2. Google how to make a mirror from it to the main one and do it.
3. Register a mirror site on Yandex 4.
Fill in the price list from the main site.
Krch in a word what and how to do, Google did not give results.
Thanks in advance for your replies and advice.