I'm using the following example for multi tenant aproach: https://github.com/nhost/nhost/tree/main/examples/multi-tenant-one-to-many, but what is the correct way to call the function "create-profile"? exist any guide for this example? would be great if the blog had a post that explain about this example.

The function "create-profile" is called by Hasura when a new user is inserted.

It's called an "event trigger".

https://docs.nhost.io/database/event-triggers