Fix: #197, Enhancement, Update "What are JavaScript data types?" answer

[yatoogamii]

trafficstars

Description

Update "What are JavaScript data types?" answer

Resolves #197

What does your PR belong to?

• [x] Questions / Answers
• [ ] Website
• [ ] General / Things regarding the repository (like CI Integration)

Types of changes

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

Checklist:

• [x] My code follows the code style of this project.
• [ ] My change requires a change to the documentation.
• [ ] I have updated the documentation accordingly.
• [ ] I have checked that the changes are working properly
• [x] I have checked that there isn't any PR doing the same
• [x] I have read the CONTRIBUTING document.