Update user.py

[Shraman-jain]

Description

Just updated the comment part which shows how to use the function rest the function is working fine

Resolves: [Issue Number]

Checklist

Before submitting this pull request, kindly verify that the ensuing checkpoints have been reached.

• Have you adhered to the repository's defined coding convention rules?
• Have you updated the 'documentation.md' file with the method/function documentation?
• Have you sent a message along with the result or response?
• Have you used the try-catch technique?
• Has the method/class been added to the documentation (md file)?

Screenshots

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Additional Notes/Comments

Testing -
codeforces_user = Users(username="jainshraman1998")
print(codeforces_user.get_user_data())
response -
{'rank': 'Newbie', 'handle': 'jainshraman1998', 'firstname': 'Shraman', 'lastname': 'Jain', 'city': ' Bhopal', 'country': 'India', 'organization': ' IIITDELHI', 'rating': '', 'contribution': '0', 'friendsofcount': '0', 'lastvisit': '39600', 'registered': '410248800.0', 'titlephoto': 'https://userpic.codeforces.org/no-title.jpg', 'avatar': 'https://userpic.codeforces.org/no-title.jpg'}

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I appreciate your contribution.