Travis badge

[polyccon]

Well done setting up Travis, although you're not supposed to merge PRs that dont pass the tests, once you get round to writing them and making sure your code passes the tests, add a travis badge in your readme as well. You can do that by clicking on the badge image on the Travis page, copy the link that pops up in an alert window and add it as a link to your read me with text "Continuous integration button"