Completed Concept Entry for Javascript: Optional Chaining #5805

[nbarnhouse]

Description

Added Optional Chaining concept entry to JavaScript.

Issue Solved

• Issue #5805

Type of Change

• Adding a new entry

Checklist

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

[PragatiVerma18]

Hey @nbarnhouse, thanks for contributing this entry, I have some suggestions that I have added as comments, please check them and do the required changes. Let me know if you need any help. Happy contributing! 🚀

[PragatiVerma18]

Hey @nbarnhouse, this is good for a second review! 🚀

[mamtawardhani]

Thank you for contributing to Codecademy Docs @nbarnhouse 😄

The entry looks good to be merged! 🚀

[github-actions]

👋 @nbarnhouse
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