The only way to do it as an individual is to email the mangago team with all of the info needed (title, alterntive title, author, genres, etc – everything you see in a manga/manhwa's entry) along with a link to download the files you have; preferably a comprehensive folder with separate chapters and cover image, etc.
This, however, seems to be unreliable as of recently. It seems there is a high chance for the mods to end up ignoring your email. Still, you could try if you want to.
> [email protected]
Another way is to simply wait for the title to be ripped from another site onto here, and then upload your chapters after the bot releases.

This might sound like a silly question but how do I upload a new manhwa on this site that I've translated?