[Edit] Appended section on DevTools for debugging with Dom Manipulation

[jrolim]

Description

Appended to the Dom Manipulation section in the JavaScript docs a part about the DevTools found in browsers that a commonly used to debug problems with DOM manipulations.

Issue Solved

Clarified how a dev might work with DOM Manipulation in real life considering debugs.

Type of Change

• Updating the documentation

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.

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