sweep: improve readme even more

[Kevin Lu]

[Deleted user]

⭐ In the meantime, consider starring our repo so more people can hear about us!
💎 Sweep Pro: I'm creating this ticket using GPT-4. You have unlimited GPT-4 tickets. To retrigger Sweep, edit the issue.

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I am currently looking into this ticket!. I will update the progress of the ticket in this comment. I am currently searching through your code, looking for relevant snippets.

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Step 1: 🔍 Code Search

I'm searching for relevant snippets in your repository. If this is your first time using Sweep, I'm indexing your repository. This may take up to 4 minutes. I'll let you know when I'm done.

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🎉 Latest improvements to Sweep:

• Use Sweep Map to break large issues into smaller sub-issues, perfect for large tasks like "Sweep (map): migrate from React class components to function components"
• Getting Sweep to format before committing! Check out Sweep Sandbox Configs to set it up.
• We released a demo of our chunker, where you can find the corresponding blog and code.

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💡 To recreate the pull request edit the issue title or description.
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