Fix spelling and grammar errors found in a full sweep of the
repo's English markdown files.
- CONTRIBUTING.md: "contributing to to it", "accpeted", "wil"
- .github/PULL_REQUEST_TEMPLATE.md: "value provider to" instead
of "value provided to"
- docs/product.md: "vendor-lock in" instead of "vendor lock-in"
- packages/expo-two-way-audio/CONTRIBUTING.md: "prescreptive"
- packages/expo-two-way-audio/README.md: "can bee added"
- skills/paseo-committee/SKILL.md: "considered and reject"
Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>