Update Screenshots

[thealphadollar]

There are some screenshots in the README.md which need to be updated as per the new screens.

[agarwalrounak]

As a part of kwoc, I would like to work on this issue. Please assign it to me.

[thealphadollar]

Sure. This is an issue that won't be close since we will always have updates. Feel free to work for now, @agarwalrounak