Hi! Want to please include the following fonts to http://webconverger.org

<link href='http://fonts.googleapis.com/css?family=Open+Sans:400,700' rel='stylesheet' type='text/css'>
<link href='http://fonts.googleapis.com/css?family=Arvo:700' rel='stylesheet' type='text/css'>

How do I do that? I suspect I need to edit a template file somewhere. Not sure where, not sure how to add it into the git repo. From there I'm at ease with local.css.