Had to update database.yml in chapter 1.5 before it to work

Hello, 

I had to remove all sqlite3 entries in database.yml to be able to push the code to heroku and the app working on heroku. If I didnt the app did not work ("application error"). Actually "logs" and "heroku run rails console" have helped a lot.. 

In case someone else struggles. ... 

BR

TanteF