docs: rename MIT LICENSE to LICENSE (#1045)

[Xenon010101]

Closes #1045

[vercel]

@Xenon010101 is attempting to deploy a commit to the magic-peach1's projects Team on Vercel.

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[github-actions]

👋 Thanks for your PR, @Xenon010101!

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[github-actions]

✅ PR Format Check Passed — @Xenon010101

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