Add License

[rajadilipkolli]

You have done cool work.

I would like to fork your project and use that for my learning and enhance it, but I cannot use due to missing license. I will provide credits to your blogpost.

Github says missing license does not allow me to use your code as a base.

If you willing to let me use the code, add license using this guide.
I'd do it for you, but I have no clue what type of license you would like to have. :)

Thank you!