How to add Google Adsense Sellers.JSON file to Discourse Forum?

I have a forum base on Discourse, and right now i want to upload Sellers.JSON but i don’t know where to start ? any sugession please cuz i try to upload to root but the link is not working :

sample like this :

Thank you all !

I found the answer, is it true ?

Hi, do you know when the sellers.json Google file is updated? (dates or frequency ?)
I put my domain in visible mode yesterday but no change my Google ads are always showing empty spaces on my Discourse site.