Select the template from the dropdown list. Click Edit Template [1]
Click Code View [1]. Replace the existing image address URL with the image address URL of the image you wish to use. Click Code View [1] again to exit.
NOTE
To obtain an image address URL, you need to upload your image onto a hosting website. This will then generate the necessary URL. You can then use this to replace the existing one. It’s recommended to use a https:// address