Update instructions

[harjotgill]

Summary by OpenAI

**Chore:**
- Updated the version of `coderabbitai/openai-pr-reviewer` from `latest` to `v1` in the README.md file.

> 🎉 Here's to the code that never rests,  
> Upgraded now to be the best.  
> From `latest` we part, to `v1` we sail,  
> On this ship of progress, we shall never fail! 🚀

[github-actions[bot]]

:robot: OpenAI

High-Level Summary

The changes in this pull request primarily involve updating the version of coderabbitai/openai-pr-reviewer from latest to v1. This change is applied in two places within the README.md file.

File	Summary
README.md	The version of coderabbitai/openai-pr-reviewer has been updated from latest to v1 in two instances. This ensures that a specific, stable version of the tool is used instead of the potentially unstable latest version.

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In the recent run, only the files that changed from the base of the PR and between 9ac127d9e21d898c665f3a7cf12229e5908149d5 and 7f1ca4ee6f70eb7600feb05f46c18447e8195e80 commits were reviewed.

Files not reviewed due to simple changes (1)

### Skipped review in the recent run * README.md