Finished the enricher README.

simonprickett · Mar 7, 2023 · 0b84aac · 0b84aac
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 # Enricher Component
 
-TODO introduction...
+This is the "enricher" component. It pulls entries from a Redis List that is being used as a queue between this component and the [receiver](../receiver) component. Each entry represents a flight that needs additional data fetching from the [FlightAware Aero API](https://flightaware.com/commercial/aeroapi/). 
+
+This component calls the API to fetch that data, storing it back in the Redis Hash representing the flight.
 
 ## Setup