To set up Social Media Icons navigate to Appearance > Customize > Social Media > Social Links, first select the icon, then enter your social media URL. These icons will appear in the Super Hero Block and Footer area.

Social Share Buttons

To set up Social Share Buttons navigate to setting location:

Location: Appearance > Customize > Social Media > Social Share Buttons

Choose social media buttons to be displayed in single page. By dragging the list you can change display order.