docs: add note on AOAI On Your Data service support for vector search…

[MoustafaAMahmoud]

… in Cosmos DB

Motivation and Context

Description

Contribution Checklist

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

[MoustafaAMahmoud]

Thanks a lot for your contribution! I think the location of your change needs to be updated though -- we currently support multiple use cases for CosmosDB, one being as a datasource where vector search is the only option, and the other being for chat history. This change is currently located under the chat history settings description.

I think we may actually need a separate heading for each datasource to describe this correctly. Would you mind writing a separate heading (similar to what we have in the README for Azure Cognitive Search) to describe the use of the Cosmos DB datasource, and move your note to that section?

Got your point. will update this.

[MoustafaAMahmoud]

I closed this PR, and opened two new ones https://github.com/microsoft/sample-app-aoai-chatGPT/pull/895 https://github.com/microsoft/sample-app-aoai-chatGPT/pull/894