Create new .md entry for JavaScript .MAX_VALUE

[lengelbrec]

Description

Created a new .md entry for the Javascript Number method .MAX_VALUE.
This was done to complete my Kanban Project for the Learn Git & GitHub course.

Issue Solved

Closes #7316

Type of Change

• Adding a new entry

Checklist

• All writings are my own.
• My entry follows the Codecademy Docs style guide.
• My changes generate no new warnings.
• I have performed a self-review of my own writing and code.
• I have checked my entry and corrected any misspellings.
• I have made corresponding changes to the documentation if needed.
• I have confirmed my changes are not being pushed from my forked main branch.
• I have confirmed that I'm pushing from a new branch named after the changes I'm making.
• I have linked any issues that are relevant to this PR in the Issues Solved section.

[CLAassistant]

All committers have signed the CLA.

[mamtawardhani]

Looks good for a second review! 🚀

[lengelbrec]

Thanks for the review and changes.
Looks to be more inline with the standard Codecademy content now.
Please let me know if I am required to do anything else to complete this.