fix: missing comma in README.md

Repeat of #211 - that update got lost somewhere in all the recent PRs

README.md

@@ -3,7 +3,7 @@
 
 **ADS-B Flight Tracker running on balena with support for FlightAware, Flightradar24, Plane Finder, OpenSky Network, AirNav RadarBox, ADSB Exchange, Wingbits, adsb.fi, ADSB.lol, ADS-B One, airplanes.live, Planespotters.net, TheAirTraffic, AvDelphi, HP Radar, RadarPlane, Fly Italy ADSB and plane.watch.**
 
-Contribute to the flight tracking community! Feed your local ADS-B data from an [RTL-SDR](https://www.rtl-sdr.com/) USB dongle (or various other radio types) and a supported device (see below) running balenaOS to the tracking services [FlightAware](https://flightaware.com/), [Flightradar24](https://www.flightradar24.com/), [Plane Finder](https://planefinder.net/), [OpenSky Network](https://opensky-network.org/), [AirNav RadarBox](https://www.radarbox.com/), [ADSB Exchange](https://adsbexchange.com), [Wingbits](https://wingbits.com), [adsb.fi](https://adsb.fi/), [ADSB.lol](https://adsb.lol/), [ADS-B One](https://adsb.one) [airplanes.live](https://airplanes.live/), [Planespotters.net](https://www.planespotters.net/), [TheAirTraffic](https://theairtraffic.com/), [AvDelphi](https://www.avdelphi.com/), [HP Radar](https://hpradar.com/), [RadarPlane](https://radarplane.com/), [Fly Italy ADSB](https://flyitalyadsb.com/) and [plane.watch](https://plane.watch/). In return, you can receive complimentary premium accounts (or cryptocurrency tokens) worth several hundred dollars annually!
+Contribute to the flight tracking community! Feed your local ADS-B data from an [RTL-SDR](https://www.rtl-sdr.com/) USB dongle (or various other radio types) and a supported device (see below) running balenaOS to the tracking services [FlightAware](https://flightaware.com/), [Flightradar24](https://www.flightradar24.com/), [Plane Finder](https://planefinder.net/), [OpenSky Network](https://opensky-network.org/), [AirNav RadarBox](https://www.radarbox.com/), [ADSB Exchange](https://adsbexchange.com), [Wingbits](https://wingbits.com), [adsb.fi](https://adsb.fi/), [ADSB.lol](https://adsb.lol/), [ADS-B One](https://adsb.one), [airplanes.live](https://airplanes.live/), [Planespotters.net](https://www.planespotters.net/), [TheAirTraffic](https://theairtraffic.com/), [AvDelphi](https://www.avdelphi.com/), [HP Radar](https://hpradar.com/), [RadarPlane](https://radarplane.com/), [Fly Italy ADSB](https://flyitalyadsb.com/) and [plane.watch](https://plane.watch/). In return, you can receive complimentary premium accounts (or cryptocurrency tokens) worth several hundred dollars annually!
 
 # Stay in the loop