Add link to blog post

Author: grega

README.md

@@ -2,7 +2,11 @@
 
 A Flask-based REST API service that finds the closest aircraft to given coordinates using FlightRadar24 data.
 
-The service was designed to be consumed by lower-power WiFi-enabled devices (eg. Raspberry Pi Pico 2 W) hooked up to a display of sorts in order to show nearby flight data. See the [interstate75 directory](examples/interstate75) for an example project using a Pimoroni "Interstate 75 W" (RP2350) controller with an LED matrix display.
+The service was designed to be consumed by lower-power WiFi-enabled devices (eg. Raspberry Pi Pico 2 W) hooked up to a display of sorts in order to show nearby flight data.
+
+See the [interstate75 directory](examples/interstate75) for an example project using a Pimoroni "Interstate 75 W" (RP2350) controller with an LED matrix display, along with the accompanying blog post:
+
+https://blog.gregdev.com/posts/2025-11-19-flight-finder-display
 
 ## Quick Start