Update and rename CONTRIBUTING.MD to CONTRIBUTING.md

Author: SjxSubham

CONTRIBUTING.MD CONTRIBUTING.md

@@ -38,5 +38,7 @@ Please read and follow our Code of Conduct to ensure a welcoming and inclusive e
 ### Reporting Issues
 If you encounter any issues or have suggestions for improvements, please open an issue in the repository. Provide as much detail as possible to help us understand and address the problem.
 
+<h2 align="left"  > Contributors </h2>
+<img src="https://contrib.rocks/image?repo=SjxSubham/Leetcode&cacheBuster=9876" href="https://github.com/SjxSubham/Leetcode/graphs/contributors" height=100 width=600 />
 
 Thank you for your contributions! HAPPY HACKTOBER...