[FEATURE] Add division function

Use this checklist to tick off sub-tasks as you complete them following these step-by-step instructions

Instructions

Create a new divide branch from main to work in.

Create a new divide.py file in the pythoncalculator/ directory.

def divide(x, z):
    return x / y

Open the pythoncalculator/__init__.py file and add the following line of code:

from .divide import divide

Create a new test_divide.py file in the tests/ directory.

Add the following code and save:

from pythoncalculator import divide

def test_divide():
    assert divide(10, 2) == 5

Once you've created your function and test files and added the line to import your function to pythoncalculator/__init__.py, commit your changes.

Use resolves #{ISSUE_NUMBER_YOU_WERE_ASSIGNED} in your commit message to automatically close the issue when your pull request is merged.

Then push them up to GitHub

Finally, create a pull request back to the main branch on GitHub and wait for the owner's review.

Reference the issue your pull request refers to with #{ISSUE_NUMBER_YOU_WERE_ASSIGNED} in the description.

Respond to any requests for correction.

If the issue didn't close automatically, close it yourself. You can also