Added improved Contribution section in README.md

[Hemanth-2OOT]

• Enhanced the Contributions section with clear contributor guidelines.
• Added encouragement for new contributors.

[Hemanth-2OOT]

“Hi! I’ve improved the contribution section as part of Hacktoberfest 😊 Kindly review my PR when possible.”

[github-actions[bot]]

This pull request has been automatically marked as abandoned because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions[bot]]

Please ping one of the maintainers once you commit the changes requested or make improvements on the code. If this is not the case and you need some help, feel free to ask for help in our Gitter channel or our Discord server. Thank you for your contributions!