[Docs] Update NodeJS version and fix note

[MarvinKlein1508]

Pull Request

📖 Description

This PR updates the mentioned NodeJS version in the contributing.md and fixes an issue with displaying a note.

👩‍💻 Reviewer Notes

I'm having this version installed as well and I have no issues compiling the repository.

✅ Checklist

General

• I have added tests for my changes.
• I have tested my changes.
• I have updated the project documentation to reflect my changes.
• I have read the CONTRIBUTING documentation and followed the standards for this project.

Component-specific

• I have added a new component
• I have added Unit Tests for my new component
• I have modified an existing component
• I have validated the Unit Tests for an existing component

⏭ Next Steps