Please refer below link ..
If you want to add by code then refer third point
the video help me, but is there a way to put my badges below "buy now" ?
instead of putting it under the description
If yes where Do I have to put that code :
Thank you !
1. Go to Online Store->Theme->Edit code
2. Asset->product-template.liquid->paste bellow code in bottom of file
Please follow below referral link