Update overview.md

Author: laujan

articles/ai-services/document-intelligence/overview.md

@@ -41,7 +41,7 @@ monikerRange: '<=doc-intel-4.0.0'
 
 :::moniker-end
 
-Azure AI Document Intelligence is a cloud-based [Azure AI service](../../ai-services/index.yml) that enables you to build intelligent document processing solutions. Massive amounts of data, spanning a wide variety of data types, are stored in forms and documents. Document Intelligence enables you to effectively manage the velocity at which data is collected and processed and is key to improved operations, informed data-driven decisions, and enlightened innovation. </br></br>
+Azure AI Document Intelligence is a cloud-based [Azure AI service](../../ai-services/index.yml) that enables you to build intelligent document processing solutions. Massive amounts of data, spanning a wide variety of data types, are stored in forms and documents. Document Intelligence enables you to effectively manage the velocity at which data is collected and processed and is key to improved operations, informed data-driven decisions, and enlightened innovation.  For more information on region access, *see* Azure AI Services [Product Availability by Region](https://azure.microsoft.com/explore/global-infrastructure/products-by-region/table).</br></br>
 
 | ✔️ [**Document analysis models**](#document-analysis-models) | ✔️ [**Prebuilt models**](#prebuilt-models) | ✔️ [**Custom models**](#custom-model-overview) |