You can edit the information of your storefront by going to settings and then storefront settings.
There you can change your logo and banner, the description of your brand, and more. If you want more details on this, click here.
A very important part of this section is where you can add your social media so your clients can follow you and stay in touch. Add the information and then click Save.
This section will be visible on the info tab of your storefront.