Add Subhajit Roy to contributors list & fixed some links

[subhajitroycode]

[Roshanjossey]

Hi, I appreciate you cleaning up the format but this results in multiple merge conflicts and prevents me from merging. Could you please submit another pull request by adding your name only?

If you didn't make changes to other lines deliberately, it's possible that your IDE made the changes with a utility like prettier. Next time, make sure that you only add your changes by using git add -p and rather than git add Contributors.md

Feel free to ask me any questions if you need further clarifications :)

Cheers