Update azure-vm-create-offer.md

As a courtesy, I corrected the single Acrolinx error "sign-off" to "sign-out" on line 506 of articles/marketplace/partner-center-portal/azure-vm-create-offer.md to conform to MS style. The change is consistent with related published articles including [Create an Azure container offer](https://docs.microsoft.com/en-us/azure/marketplace/partner-center-portal/create-azure-container-offer).
Reference: [MS Writing Style Guide](https://styleguides.azurewebsites.net/StyleGuide/Read?id=2700&topicid=28799)

Author: denrea

articles/marketplace/partner-center-portal/azure-vm-create-offer.md

@@ -503,7 +503,7 @@ This page includes links to perform operations on this offer based on the select
 - If the offer is a draft - [Delete draft offer](https://docs.microsoft.com/azure/marketplace/partner-center-portal/update-existing-offer#delete-a-draft-offer)
 - If the offer is live - [Stop selling the offer](https://docs.microsoft.com/azure/marketplace/partner-center-portal/update-existing-offer#stop-selling-an-offer-or-plan)
 - If the offer is in preview - [Go-live](https://docs.microsoft.com/azure/marketplace/partner-center-portal/publishing-status#publisher-approval)
-- If you haven't completed publisher sign-off - [Cancel publishing](https://docs.microsoft.com/azure/marketplace/partner-center-portal/update-existing-offer#cancel-publishing)
+- If you haven't completed publisher sign-out - [Cancel publishing](https://docs.microsoft.com/azure/marketplace/partner-center-portal/update-existing-offer#cancel-publishing)
 
 ## Marketplace examples