Update _config.yml
Update _config.yml

minor copy edits, added twitter and facebook links
remugio/campusdebate.github.io,remugio/campusdebate.github.io,campusdebate/campusdebate.github.io,remugio/campusdebate.github.io,campusdebate/campusdebate.github.io,campusdebate/campusdebate.github.io