Update details about GitHub Sponsors invoicing (github#33871)

Co-authored-by: Steve Guntrip <[email protected]>
Co-authored-by: github-actions <[email protected]>

Author: 3 people

assets/images/help/sponsors/example-sponsors-invoice.png

@@ -15,7 +15,11 @@ redirect_from:
 
 {% data reusables.sponsors.beta-note-sponsors-for-companies %}
 
-Companies can use an invoice method to participate in the {% data variables.product.prodname_sponsors %} program. This can be particularly convenient if your company has an existing invoiced billing relationship with {% data variables.product.company_short %}. Companies paying by invoice get access to a {% data variables.product.product_name %} dashboard that measures open source contributions and activity across the public projects on {% data variables.product.prodname_dotcom_the_website %} they're interested in.
+Companies can use an invoice method to participate in the {% data variables.product.prodname_sponsors %} program. Companies paying by invoice get access to a {% data variables.product.product_name %} dashboard that measures open source contributions and activity across the public projects on {% data variables.product.prodname_dotcom_the_website %} they're interested in.
+
+Companies paying by invoice will be invoiced separately for their {% data variables.product.prodname_sponsors %} payments and their other payments to GitHub. Payments to {% data variables.product.prodname_sponsors %} are invoiced through Stripe.
+
+![Example GitHub Sponsors invoice sent via Stripe](/assets/images/help/sponsors/example-sponsors-invoice.png)
 
 You can join this beta program by talking to your sales representative, or by [contacting us](https://support.github.com/contact/org-sponsors-waitlist).