Add diagram of how the app works

[peterdudfield]

trafficstars

Detailed Description

Would be good to add a flow diagram of how the app is working, what data it is saving and where

Context

easy to see what is going on

Possible Implementation

using mermaid in markdown

[barkhaaroraa]

hi, could i be assigned to this issue?

[peterdudfield]

Thanks @barkhaaroraa so much for taking this on. Please comment here if you need any help