Update screenshot image on README

[ArvindParekh]

The current screenshot is of the old version of the app, and it'd be better to update it to reflect the newer changes.

[hrshvrdhnsingh]

Hi! I can do the above if it's not done yet.

[ArvindParekh]

Sure, feel free to assign it to yourself and work on it @hrshvrdhnsingh 👍🏻