Make description of our product

[sauln]

From black_holes_frontend created by samking314 : codeforgoodconf/black_holes_frontend#1

Write a nice readme.

• [ ] Explain the tech stack,
• [ ] Explain the features in the website,
• [ ] Provide some explanation of the neural net,
• [ ] Provide setup instructions so new users can get involved.

[sauln]

One for complete project and also one each for frontend and backend.