New doc - use AI to connect to document intelligence

[alexwolfmsft]

Describe the issue or suggestion

Create a new doc that explains how to ingest docs using Azure Document Intelligence and then search for or work with them using AI. This doc can be similar to a RAG scenario, but with a focus on Azure Document Intelligence.

• How to add documents to Azure Document Intelligence
• How to search or query them using AI models
• Compare Azure Document Intelligence to other options.