How to use same wordpress`s user database for discourse forum?

I have a wordpress website, who allows registration, and now i want to make a community for my website so people can talk further, but in the same time, i don`t want these users to signup again for my community, i just want them to use their login data from the main website in the community, i use wordpress.

You can use this plugin, it’s easy to set up and you can decide if you want Discourse to provide the user db, or wordpress, so that they don’t have to signup twice