Social Media Buttons are editable under Content > Link Lists > "Header Social Links".  Under the this Link List you must specify the following fields:

• Name: e.g. Twitter   -   This is the name of the service
• Link: e.g. http://twitter.com   -   A link to your social media profile.
• Description: e.g. icon-twitter-3   -   This is a special name that loads the corrosponding Icon. See the Icons section below for a list of icons available

Quick Links are editable under Content > Link Lists > "Header Quick Links".   The Link List title displays as the link text, the link URL displays as the link URL. There should be no more than 2 or 3 links in this section.