[Term Entry] Python NumPy Built-in Function: .Quantile()

[jgourley1]

Description

-Wrote the term entry for the .quantile() built-in function for the Python NumPy library.
-Undertook this as part of the learn Git & GitHub curriculum.

Issue Solved

-Closes Issue #6415

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]

Thank you for contributing to Codecademy Docs @jgourley1 😄

The entry looks great for a second round of review! 🚀