Update overview.md (Typo "Azure Open AI"→"Azure OpenAI")

https://learn.microsoft.com/en-us/azure/ai-services/qnamaker/overview/overview
https://github.com/MicrosoftDocs/azure-docs/blob/main/articles/ai-services/qnamaker/Overview/overview.md
#PingMSFTDocs

Author: hyoshioka0128

articles/ai-services/qnamaker/Overview/overview.md

@@ -14,7 +14,7 @@ keywords: "qna maker, low code chat bots, multi-turn conversations"
 # What is QnA Maker?
 
 > [!NOTE]
-> [Azure Open AI On Your Data](../../openai/concepts/use-your-data.md) utilizes large language models (LLMs) to produce similar results to QnA Maker. If you wish to migrate your QnA Maker project to Azure Open AI On Your Data, please check out our [guide](../How-To/migrate-to-openai.md).
+> [Azure OpenAI On Your Data](../../openai/concepts/use-your-data.md) utilizes large language models (LLMs) to produce similar results to QnA Maker. If you wish to migrate your QnA Maker project to Azure OpenAI On Your Data, please check out our [guide](../How-To/migrate-to-openai.md).
 
 [!INCLUDE [Custom question answering](../includes/new-version.md)]