Update deep-research.md

Author: sanjeev3

articles/ai-foundry/agents/how-to/tools/deep-research.md

@@ -13,8 +13,8 @@ ms.topic: how-to
 # Deep Research tool (preview)
 
 > [!NOTE]
-> * The Agents service and SDK use the Azure OpenAI `o3-deep-research` model. This model is currently **not** available for use in Azure OpenAI Chat Completions and Responses APIs.
-> * The  `o3-deep-research` model and the GPT model deployments should be part of your AI Foundry project resulting in all three resources in the same Azure subscription and same region. Supported regions are **West US** and **Norway East**.
+> * The Agents SDK use the Azure OpenAI `o3-deep-research` model. This model is **not** available for use in Azure OpenAI Chat Completions and Responses APIs.
+> * The AI Foundry project (parent resource) and the contained `o3-deep-research` and GPT models (child resources) **must exist** in the same Azure subscription and region. Supported regions are **West US** and **Norway East**.
 
 The Deep Research tool in the Azure AI Foundry Agent Service enables you to integrate a web-based research capability into your systems. The Deep Research capability is a specialized AI capability designed to perform in-depth, multi-step research using data from the public web.