Added documentation for circular linked list

[pyagnik12]

Added short descrioption, structure, operations information, example, application information and Conclusion

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• My submission is formatted according to the guidelines in the contributing guide
• My addition is on refer on the language README.md file
• My addition does not have a spelling problem
• My submission has a proper and user-friendly description of the algorithm

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• Bugfix
• New algorithm
• Optimization in previous algorithms
• Code style update
• Refactor
• Documentation
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Briefly describe the changes in this PR

Title: Documentation for Circular Linked List & Time Complexities

Description:

Introduces a concise guide on Circular Linked Lists, covering structure, operations (insert, delete, traverse), and a Python implementation example. Includes operation time complexities to aid in understanding efficiency. This documentation is aimed at enhancing developer knowledge on Circular Linked Lists, highlighting their application and performance metrics.

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