Go to the credential page and click the Embed Credential button that appears in the left sidebar:
In the pop-up window, you'll see a field containing an embed code for the credential. Just copy the magic code and paste it into your website or blogging software:
You can customize the width and height of the certificate or badge to fit to your website or blog by changing these numbers at the top of the modal before copying the embed code.
Click here to view a brief video tutorial on embedding - https://youtu.be/EIoK5IG-GNE