Update sales-tax.mdx (cloudflare#23127)

Added in a note for Maryland's new technology tax.

Author: TracyCloudflare

src/content/docs/billing/sales-tax.mdx

@@ -15,7 +15,8 @@ Cloudflare customers in a sponsorship program (i.e. [Project Athenian](https://w
 
 ## US State sales tax
 
-In the US, sales tax requirements are computed based on the 9-digit postal code of the address on file for your Cloudflare account.
+In the US, sales tax requirements are computed based on the 9-digit postal code of the address on file for your Cloudflare account. 
+Note to customers in Maryland: On July 1, 2025, Maryland began charging a tax on some technology services, including some provided by Cloudflare.
 
 ### Filing for US sales tax exemption
 
@@ -87,4 +88,4 @@ Cloudflare will issue tax invoices and add VAT at the 16% standard rate on top o
 
 You may update your VAT registration number in your account profile.
 
-Reach out to Cloudflare via email [[email protected]](mailto:[email protected]) if you have any tax related concerns or questions.
+Reach out to Cloudflare via email [[email protected]](mailto:[email protected]) if you have any tax related concerns or questions.