Fix Incorrect Clone Command in Documentation

[shreya112003]

Description:
In the Getting Started Locally section, the clone command points to the wrong repository:

git clone https://github.com/piyush0213/IIITUNA

It should be:

git clone https://github.com/piyush0213/Interview.io

Why Important:
Beginners cloning the repo will fail setup. Updating this improves onboarding.

Approach:
Update README.md with the correct repo link.

[shreya112003]

@piyush0213 i would love to resolve this issue ,please assign it to me under gssoc25.

[piyush0213]

Thanks @shreya112003 for spotting this 🙌 Assigned to you under GSSoC’25. Looking forward to your PR 🚀