docs: warns about windows correct files encoding

[jefersoneiji]

Description

Warn windows users the correct encoding to use.

Motivation and Context

https://github.com/conventional-changelog/commitlint/issues/4085#issuecomment-2115557857

Usage examples

// commitlint.config.js
module.exports = {};

echo "your commit message here" | commitlint # fails/passes

How Has This Been Tested?

Types of changes

• [ ] Bug fix (non-breaking change which fixes an issue)
• [ ] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.

[codesandbox-ci[bot]]

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[escapedcat]

Thanks!