Fixed some typos in gpt-5_prompting_guide.ipynb

This change improves the readability and professionalism of the text in the cookbook by correcting punctuation, ensuring it follows proper grammar rules. Clear, error-free documentation helps maintain a high-quality resource for readers.

Summary

Fixed minor typos and improved punctuation in the documentation:

Added a missing period to the sentence:
1
This reduces the model’s need to explore and reason about too many ideas:
to
This reduces the model’s need to explore and reason about too many ideas.
2
Deduplicate paths and cache; don’t repeat queries.
to
Deduplicate paths and cache, and don’t repeat queries.
3
you can find a sample planning prompt snippet we placed at the beginning of an agentic task:
to
you can find a sample planning prompt snippet we placed at the beginning of an agentic task.
4
to be consistent with only scheduling with consent.
to
To be consistent with only scheduling with consent.

Motivation

These changes enhance the clarity, readability, and grammatical accuracy of the cookbook’s documentation. Clear and polished text ensures that instructions are easy to follow and maintain a professional tone for all readers.

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