To add a PowerForm to your website you can begin by using this guide by DocuSign to create your form.
Once you have reached step 5 and have successfully created your form you can copy the URL that DocuSign generates and have it ready to paste into the editor.
Select App Integrations
And then select Third-Party Integrations
From here click the Add a third party integration button and find DocuSign in the popup that appears:
You should now see a field where you can enter your URL from earlier:
After adding the URL press back, this will take you back to your list of added integrations. Toggling the switch will enable the ability to add the form to your pages.
Navigate to the page you want to add the form to, and click the add a section button. You will be able to see your widget under the category "Section Integrations".
Once you've added it to the page that you want the form to appear on click publish and it will now appear on your live site.