Add SPDX identifier to LICENSE

[bmuenzenmeyer]

Description

Adds a SPDX identifier to the nodejs.org repo.

This has a number of benefits.

GitHub will display the license info more succinctly for users. This helps users understand our license faster (though it matters less than a consumable library)

Check this out from one of my other projects.

GitHub will show the license file in the sidebar.

The OpenSSF scorecard will be able to identify the license. There is an open "issue" about this right now.

https://github.com/nodejs/nodejs.org/security/code-scanning/58 (I know not everyone may be able to see that)

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If this works out, I will consider contributing it to nodejs/node for the same reasons.

Validation

N/A

Related Issues

Check List

• I have read the Contributing Guidelines and made commit messages that follow the guideline.
• I have run npx turbo lint to ensure the code follows the style guide. And run npx turbo lint:fix to fix the style errors if necessary.
• I have run npx turbo format to ensure the code follows the style guide.
• I have run npx turbo test to check if all tests are passing.
• I've covered new added functionality with unit tests if necessary.

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Name	Status	Preview	Updated (UTC)
nodejs-org	✅ Ready (Inspect)	Visit Preview	Nov 24, 2023 2:19pm

[bmuenzenmeyer]

fast-tracking - trivial but important fix

[github-actions]

Lighthouse Results

URL	Performance	Accessibility	Best Practices	SEO	Report
/en	🟢 100	🟢 97	🟢 92	🟢 92	🔗
/en/about	🟢 100	🟢 95	🟢 92	🟢 92	🔗
/en/about/previous-releases	🟢 100	🟢 93	🟢 92	🟢 92	🔗
/en/download	🟢 100	🟢 95	🟢 92	🟢 92	🔗
/en/blog	🟢 98	🟢 95	🟢 92	🟢 92	🔗

[github-actions]

Unit Test Coverage Report

Lines	Statements	Branches	Functions
	90.59% (366/404)	77.77% (91/117)	89.04% (65/73)

Unit Test Report

Tests	Skipped	Failures	Errors	Time
71	0 💤	0 ❌	0 🔥	5.687s ⏱️