Once there, go to the "header" section and add the following code
<script defer src="https://get.embedery.app/embed.js" data-id="YOUR_SPACE_ID" ></script>
Ensure you replace 'YOUR_SPACE_ID' with your space ID.
Your space ID can be found in the URL of Embedery.com "https://app.embedery.com/a/SPACE_ID", in this case, "SPACE_ID" is the space URL.
And that's it, we will eventually provide an official plugin if enough Embedery users ask for it. So please contact us if interested.
We are sorry to hear that you have not found the appropiate documentation to help solve your problem.
Please reach out to us and we will do our best to help.