Add scale.md (#21597)

## Description
- There is a 404 link in an email being sent to over 400 customers today
that points to a page in tomorrow (12/10s) [subscription updates
PR](#21476)
- To fix this, we are adding scale.md today, removing any dead links.
Tomorrow's PR will overwrite this and add the correct content

## Related issues or tickets
- https://docker.slack.com/archives/C0334FHU341/p1733512718061719

## Reviews
@ob1dev
- [ ] Editorial review

---------

Co-authored-by: Oleg Burov <[email protected]>

Author: sarahsanders-docker

content/manuals/subscription/scale.md

@@ -0,0 +1,63 @@
+---
+description: Learn how to scale your Docker subscription
+keywords: subscription, Pro, Team, business, pricing plan, build minutes, test container minutes, pull limit
+title: Scale your subscription
+weight: 17
+---
+
+>[!NOTE]
+>
+> Owners of legacy Docker subscription plans must upgrade their subscription to a new
+> Docker subscription plan in order to scale their subscription.
+>
+> Legacy Docker plans apply to Docker subscribers who last purchased or renewed
+> their subscription before December 10, 2024. These subscribers will keep
+> their current plan and pricing until their next renewal date that falls on or
+> after December 10, 2024. For more details about legacy
+> subscriptions, see [Announcing Upgraded Docker
+> Plans](https://www.docker.com/blog/november-2024-updated-plans-announcement/).
+
+Docker subscriptions let you scale your consumption as your needs evolve. Except
+for legacy Docker subscription plans, all paid Docker subscriptions come with
+access to Docker Hub, Docker Build Cloud, and Testcontainers Cloud with a base
+amount of consumption. You can scale your consumption at any time during your subscription period. All purchased consumption expires at the end of your subscription term.
+
+You can scale consumption for the following:
+
+- Docker Build Cloud minutes
+- Docker Testcontainers Cloud runtime minutes
+- Docker Hub storage and image pull
+
+## Add Docker Build Cloud minutes
+
+You can pre-purchase Docker Build Cloud minutes in the Docker Build Cloud Dashboard:
+
+1. Sign in to [Docker Home](https://app.docker.com/).
+2. Under Settings and administration, select **Billing**.
+3. On the plans and usage page, select **View build minutes**.
+    This will launch the Docker Build Cloud settings page.
+4. Select **Add minutes**.
+5. Select your additional minute amount, then **Continue to payment**.
+6. Enter your payment details and billing address.
+7. Review your order and select **Pay**.
+
+Your additional minutes will now display on the Build minutes page.
+
+## Add Docker Testcontainers Cloud runtime minutes
+
+You can pre-purchase Testcontainers Cloud runtime minutes by [contacting
+ sales](https://www.docker.com/pricing/contact-sales/). In addition to
+pre-purchase, you are able to use as many minutes as you need on-demand. The
+usage will be billed at the end of each monthly billing cycle. On-demand usage
+is billed at a higher rate than pre-purchased capacity. To avoid on-demand
+charges, pre-purchase additional minutes.
+
+## Add Docker Hub storage or image pulls
+
+You can pre-purchase images pulls and storage by [contacting
+sales](https://www.docker.com/pricing/contact-sales/).
+
+In addition to pre-purchase, you are able to use as much resources as you need
+on-demand. On-demand usage is billed at a higher rate than pre-purchased
+capacity. To avoid on-demand charges, pre-purchase additional storage or image
+pulls.