fix broken user verification process / replace freecodecamp.com with .org

[no-stack-dub-sack]

freeCodeCamp recently moved over to freecodecamp.org instead of freecodecamp.com. I know a couple of people signed up successfully as recently as a few hours ago, but locally, this change seems to be breaking the user verification process. I just dropped the DB and tried to sign up again, and it's telling me I don't have certs.

The verification process relies on pinging a user's freecodecamp.com/username/certification end point. While I can still seem to access my own freecodecamp.com/no-stack-dub-sack page, this still seems to be breaking verification locally. When I change the endpoint to freecodecamp.org/no-stack-dub-sack I am then able to verify my account.