Please open the icon folder and do the following steps
1. Upload Social Icons to your hosting : Dashboard>Media>Add new
2. Dashboard>Media>Library > Click on Edit icon > Copy the icon URL
3. Add text widget to the The Extra Header Widget Area
4. COPY this code and paste to your text widget
<div style="text-align:center;"> <a href="your-facebook-link-here" target="_blank" > <img src="your-facebook- icon-url-that-you-have-copied-at-step2" alt=""></a> <a href="your-instagram-link-here" target="_blank" ><img src="your-instagram-icon-url-that-you-have-copied-at-step2" alt=""></a> <a href="your-pinterest-link-here" target="_blank" ><img src="your-pinteret-icon-url-that-you-have-copied-at-step2" alt=""></a> </div>
5. Save the text widget and see the result
