[typo] replace words

[Youshin]

Summary

The following files in the Azure examples section contain typo corrections:

• examples/azure/chat_with_your_own_data.ipynb
• examples/azure/embeddings.ipynb
• examples/azure/functions.ipynb
• examples/azure/whisper.ipynb

Typos corrected:

• “prequisites” changed to “prerequisites”
• “autheticate” changed to “authenticate”

Motivation

These changes are necessary to improve the accuracy and professionalism of the documentation. Correct spelling improves readability and ensures that the content appears polished and error-free, which enhances user experience and trust in the material. By fixing these typos, the cookbook becomes clearer and more accessible to users, especially those learning how to work with OpenAI and Azure services.

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