When you added Social Icons element into the Header or Footer Builder, you can choose what icons you want to display. But if you want to set your Social Media URL, you can go to Appearance > Global Settings > Social Media Links.
Currently Suki supports 14 social icons:
- Behance
- Dribbble
- Github
- Google Plus
- Medium
- RSS
- Vimeo
- VK
- Youtube
If you want to add other social icons that are not in the list, you can use Custom Icons module in Suki Pro.