Add all challenge contributors in the README

[thebongy]

:)

[roerohan]

@all-contributors add @AJ1479 for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @AJ1479! 🎉

[roerohan]

@all-contributors add @alias-rahil for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @alias-rahil! 🎉

[roerohan]

@all-contributors add @ashikka for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @ashikka! 🎉

[roerohan]

@all-contributors add @parthkgh24 for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @parthkgh24! 🎉

[roerohan]

@all-contributors add @Atharva-Gundawar for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @Atharva-Gundawar! 🎉

[roerohan]

@all-contributors add @SrishtiGohain for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @SrishtiGohain! 🎉

[roerohan]

@all-contributors add @harsoh for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @harsoh! 🎉

[roerohan]

@all-contributors add @ritwikgoel for docs and code.

[allcontributors]

@roerohan

I've put up a pull request to add @ritwikgoel! 🎉

[roerohan]

@all-contributors add @roerohan for infra and code.

[allcontributors]

@roerohan

I've put up a pull request to add @roerohan! 🎉

[roerohan]

@all-contributors add @Shiv10 for docs and code

[allcontributors]

@roerohan

I've put up a pull request to add @Shiv10! 🎉

[roerohan]

@all-contributors add @Pragati1610 for docs and code

[allcontributors]

@roerohan

I've put up a pull request to add @Pragati1610! 🎉