Add usage tips for TabPFN in README

[noahho]

Added important tips for using TabPFN effectively, including batch prediction mode, data preprocessing advice, GPU usage, and dataset size limitations.

Issue

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please open one to describe the bug or feature request before creating a pull request.

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Motivation and Context

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Public API Changes

• No Public API changes
• Yes, Public API changes (Details below)

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How Has This Been Tested?

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Checklist

• The changes have been tested locally.
• Documentation has been updated (if the public API or usage changes).
• A entry has been added to CHANGELOG.md (if relevant for users).
• The code follows the project's style guidelines.
• I have considered the impact of these changes on the public API.

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[gemini-code-assist]

Code Review

This pull request adds a helpful 'Important Tips' section to the README file. My review focuses on improving the formatting of these tips for better readability and correcting a minor typo.

[Copilot]

Pull Request Overview

This PR adds a new "Usage Tips" section to the README that provides important guidance for TabPFN users on batch prediction mode, data preprocessing, GPU requirements, and dataset size limitations.

• Added "Usage Tips" section with performance and usage recommendations
• Included guidance on batch prediction mode, data preprocessing, GPU requirements, and dataset size limits
• Positioned the new section between the regression example and the "Best Results" section

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[noahho]

/gemini review

[gemini-code-assist]

Code Review

This pull request adds a helpful 'Usage Tips' section to the README.md. My feedback focuses on improving the formatting and readability of these tips by converting the paragraph into a bulleted list, which also corrects a minor typo. This change will make the tips easier for users to scan and understand.

[Copilot]

Pull Request Overview

Copilot reviewed 1 out of 1 changed files in this pull request and generated no new comments.

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