Quoterio: for those who save quotes into a text file

I've built this small app (http://quoterio.com/) for those crazy people who like me still save their favorite quotes into a text file.

The app is free and all inserted quotes become public, so we all can profit from inserting our quotes into the DB.

Thanks for all kinds of criticism in advance.

PS: I know there are alternatives, but I also have used it as a chance to learn Sinatra (the app is deployed on Heroku).