change partial render call in views/layout.erb

previous call did not work
complete decks/show.erb page with a question counter and answer tracker formatted using CSS.
make gameover view but styles dont yet work
fix merge conflict
add '/' to css/bootstrap.css so it loads when the page loads
complete gameover page with final score and game over notice.
Merge pull request #10 from Nayshins/gameover-view

Gameover view