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

[yatoogamii]

Description

Update "What are JavaScript data types?" answer

Resolves #197

What does your PR belong to?

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

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• 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:

• 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
• I have checked that there isn't any PR doing the same
• I have read the CONTRIBUTING document.