User readability mode

[ayushnanda21]

Would like to add Dark mode to the website. Would increase the users reading experience.

[parasg1999]

Go ahead! Make sure to allow to toggle

[parasg1999]

Also, I'd like you to please converse in comments on github. It gets difficult to look at the email and github. I haven't deployed on heroku, so that's why you are not able to view it there.

[ayushnanda21]

Sure, I"ll take care from now. Can you please add the labels on this issue