ENGDOCS-2328 (#21495)

## Description
- Instructions in
https://docs.docker.com/subscription/core-subscription/downgrade/ guide
used Docker Hub steps, with Docker Home link. Updated to Docker Hub
steps. In the DCP updates, this will have a tabbed view for hub vs.
Billing console steps

## Related issues or tickets

[ENGDOCS-2328](https://docker.atlassian.net/browse/ENGDOCS-2328?atlOrigin=eyJpIjoiZDFmZjZjNWY4YzBmNDExMTlmMDlkYjA3ODg1ZmJjMDEiLCJwIjoiaiJ9)

## Reviews
- [ ] Editorial review

[ENGDOCS-2328]:
https://docker.atlassian.net/browse/ENGDOCS-2328?atlOrigin=eyJpIjoiNWRkNTljNzYxNjVmNDY3MDlhMDU5Y2ZhYzA5YTRkZjUiLCJwIjoiZ2l0aHViLWNvbS1KU1cifQ

---------

Co-authored-by: Allie Sadler <[email protected]>

Author: sarahsanders-docker

content/manuals/subscription/core-subscription/downgrade.md

@@ -36,7 +36,7 @@ If you want to downgrade a Docker Business subscription and your organization us
 >
 >If you have a [sales-assisted Docker Business subscription](details.md#sales-assisted), contact your account manager to downgrade your subscription.
 
-1. Sign in to [Docker Home](https://app.docker.com).
+1. Sign in to [Docker Hub](https://hub.docker.com).
 
 2. Select your **avatar** and from the drop-down menu select **Billing**.