docs: add LICENSE and update READMEs for publication

[hyperfinitism]

What's changed

• Add LICENSE — MIT License
• Update README.md
  • Add package version, Python ver (MSPV), and license badges
  • Add Compatibility section
  • Remove example code
  • Adjust heading
• Update examples/README.md
  • Add description
  • Fix sample report info

Test

No changes to the code.

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