[x] User can see a navigation bar.
[x] User can see the Spotify logo in the top left.
[x] User can see navigation links in the top right.
[x] User can see a jumbotron below the navigation bar.
[x] User can see content in the jumbotron centered horizontally and vertically.
[x] User can see a footer at the bottom of the page.
[x] User can see footer links change when hovered.