Create CONTRIBUTING.md

[0Armaan025]

Hey there! First, if you are reading this, you are amazing!

I'm Armaan and actively taking part in Hacktoberfest and HackSquad, I was contributing to various repos recently and found out this repo (had a lot of contributions.

As always, I jumped and tried to find out "CONTRIBUTING.md" which all the beginners find first to start contributing but unlike other amazing repos, I couldn't find any, "CONTRIBUTING.md" contains a set of guidelines and steps on how to contribute to the project!

This change (separate file on steps and guidelines) will help increase contributors to contribute even more especially beginners, and to make it fun, emojified and engaging for users!

Who doesn't like fun? : D

So, I went ahead and made a separate "CONTRIBUTING.md" file with steps and guidelines, I hope this will help beginners and potentially increase contributors to this amazing repo!

Since I'm not the owner/maintainer of this repo, I do not have full data about the project, so there might be slight mistakes, and I deeply apologise for that.

This PR is free for any modifications/edits.

If this change was not really required, you are free to close this PR or merge it if you want, I'm sorry.

I am hoping for a positive and quick merge!

Thanks and regards, Armaan.