Translating Contributing guidelines in README.md to Bengali

[Akash190104]

I would like to translate the contributing guidelines in README.md to bengali too. Please assign this issue to me.

[shaonkabir8]

Hi Mate 👋
It's glad to know that you're going to translate the Contributing Guidelines into Bengali in README.md file.
Keep it up. 👍

Thanks in advance,
Shaon Kabir ,
Maintainer @ DevSonket