Update getting-started.md

[Yeti-or]

Use esm module in getting started section

Description

failure just after copypasting from setup section

npx commitlint --last --verbose

export default { extends: ['@commitlint/config-conventional'] };
^^^^^^

SyntaxError: Unexpected token 'export'

just use .mjs format to let node.js use esm

Motivation and Context

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]

This pull request is automatically built and testable in CodeSandbox.

To see build info of the built libraries, click here or the icon next to each commit SHA.

[escapedcat]

Which node version are you using?
Can't reproduce this with v18/20

[escapedcat]

Closing because of missing feedback. Please re-open if wanted.

[KingMob]

I'm seeing this exact issue with node v20.11.1, after following the installation instructions. I think it's worth reopening.

❯ cat commitlint.config.js
export default { extends: ['@commitlint/config-conventional'] };

❯ npx commitlint --print-config
(node:9825) Warning: To load an ES module, set "type": "module" in the package.json or use the .mjs extension.
(Use `node --trace-warnings ...` to show where the warning was created)
/Users/matthew/Code/probcomp/GenSQL.query/commitlint.config.js:1
export default { extends: ['@commitlint/config-conventional'] };
^^^^^^

SyntaxError: Unexpected token 'export'
    at internalCompileFunction (node:internal/vm:77:18)
    at wrapSafe (node:internal/modules/cjs/loader:1288:20)
    at Module._compile (node:internal/modules/cjs/loader:1340:27)
    at Module._extensions..js (node:internal/modules/cjs/loader:1435:10)
    at Module.load (node:internal/modules/cjs/loader:1207:32)
    at Module._load (node:internal/modules/cjs/loader:1023:12)
    at Module.require (node:internal/modules/cjs/loader:1235:19)
    at module.exports (/Users/matthew/Code/probcomp/GenSQL.query/node_modules/import-fresh/index.js:32:59)
    at loadJsSync (/Users/matthew/Code/probcomp/GenSQL.query/node_modules/cosmiconfig/dist/loaders.js:17:12)
    at loadJs (/Users/matthew/Code/probcomp/GenSQL.query/node_modules/cosmiconfig/dist/loaders.js:27:43) {
  filepath: '/Users/matthew/Code/probcomp/GenSQL.query/commitlint.config.js'
}

Node.js v20.11.1

[KingMob]

I can confirm that changing the suffix from .js to .mjs fixes it for now.

[escapedcat]

Thanks for your feedback. Can reproduce this now as well.
Wondering why this worked before.
There might be an underlying issue that should be fixed instead of the docs.