Add my name to contributors

[Mahi-korrapati]

Problem

GitStart is a beginner-friendly repository where contributors can add themselves to learn how to make a Pull Request.

Solution

I added my contributor file containing my name and GitHub profile link.

Changes Proposed in this Pull Request

Added Mahi-Korrapati.md inside the contributors folder

Included my GitHub profile link

Added a short note for Hacktoberfest contribution