Update AzureOpenAI_OnYourData_Elasticsearch.ipynb (Typo "Azure Open A…

[hyoshioka0128]

…I"→"Azure OpenAI")

Motivation and Context

Description

• Typo "Azure Open AI"→"Azure OpenAI"
• https://github.com/microsoft/sample-app-aoai-chatGPT/blob/main/notebooks/AzureOpenAI_OnYourData_Elasticsearch.ipynb
• #PingMSFTDocs

Contribution Checklist

• I have built and tested the code locally and in a deployed app
• For frontend changes, I have pulled the latest code from main, built the frontend, and committed all static files.
• This is a change for all users of this app. No code or asset is specific to my use case or my organization.
• I didn't break any existing functionality 😄