This is a plugin to add one or more social media links to your site.
Install the plugin via Studio's Plugin Management UI under Site Tools > Plugin Management.
Create a Social Media Widget by dragging the component to your page, or creating a component of type Social Media Widget.
Once the component is created, you can set the social media accounts you want it to display. All accounts come with a default icon, that can be replaced if case you want your own custom icon.