Updated Campaign Page- including pagination of sponsors at bottom of screen

Though I've not used gh-pages before, I am hoping to find ways to contribute to the amazing work your group is doing. I've made two adjustments to text and added a footer to the sponsors table so that pagination appears when someone scrolls to the bottom of the page, per the issue reported at https://github.com/rails-girls-summer-of-code/summer-of-code/issues/55

I'm brand new to using GitHub Pages, so I'm having difficulty generating a full preview on my local machine. Please let me know if any of this needs to be done differently. 

Thanks!
Rylee