Fixed a formatting issue in README.md

[azurechen97]

Motivation and Context

There was a formatting issue in the original README.md under section Performance & Limitations:

Q: How can I improve TabPFN’s performance? A: Best practices:

• Use AutoTabPFNClassifier from TabPFN Extensions for post-hoc ensembling
• Feature engineering: Add domain-specific features to improve model performance Not effective:
  • Adapt feature scaling
  • Convert categorical features to numerical values (e.g., one-hot encoding)

In which "Not effective" follows "Feature engineering" without a line break, making it confusing.

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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 correctly fixes a formatting issue in README.md by adding a blank line. I've also identified a related formatting issue in the same section and provided a suggestion to improve it for better rendering and clarity.

[CLAassistant]

All committers have signed the CLA.

[noahho]

Thank you!