Heroku osoite: https://whispering-gorge-52338.herokuapp.com
Backendin osoite: https://whispering-gorge-52338.herokuapp.com/api/persons
Heroku osoite: https://whispering-gorge-52338.herokuapp.com
Backendin osoite: https://whispering-gorge-52338.herokuapp.com/api/persons