Watching tutorial video in here: https://www.youtube.com/watch?v=gpFo-ucaCmU&list=PLZSqbv2i8LOBCosw-vNCjyhmJ5BmrmCqA&index=24
Why do you need to use this section?
This section will help you connect your page to social networking accounts like facebook, twitter, instagram, Pinterest, tumbrl, Email. It connects them all together to help you manage and connect better and more diverse and accessible to customers.
Go to Theme settings > Social media
Shown when sharing a link on social media. Learn more about image thumbnails.
From your Shopify admin, go to Online Store > Preferences.
Scroll down until you find the Social sharing image section.
Click on Add Image.
Select the image from your computer that you want to show on social media.
From your Shopify admin, go to Online Store > Themes.
Find the theme that you want to edit and click Customize.
Click the Theme settings tab.
Click Social media.
In the Social sharing image area, select the image that you want to show on social media.
Note: You have to Share that image on Facebook or others social media.
Connect with social account in here.