Merge pull request #310002 from Nicholak-MS/patch-659263 Add checklist for Microsoft Customer Agreement billing migration

Update image source for billing hierarchy diagram

Refactor section headers for billing migration checklist Updated section headers for consistency and clarity. Adjusted formatting for improved readability. Moved to sentence case per review feedback.

Update billing hierarchy diagram in migration checklist

Update checklist-microsoft-customer-agreement-billing-migration.md

Rename mca-billing-hierarchy.png to microsoft-customer-agreement-billing-hierarchy.png

Update date and remove AVS Reserved Instances section Updated the date for the Microsoft Customer Agreement billing migration checklist and removed the section on Azure VMware Solution Reserved Instances.

Merge pull request #314157 from JustPies/jpfoundryimages-2-4-4 Foundry Branding - Images

cleanup

updated image for blocking issue

Update prepare-buy-reservation.md

Add sponsorship credit note for Reserved Instances Clarify that Azure Sponsorship credits cannot be used to purchase Reserved Instances, even though reservations apply to eligible resources in Sponsorship-backed subscriptions. Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

Merge pull request #314185 from jkinma39/docs-editor/download-azure-invoice-1775155358 Update download-azure-invoice.md