Update README.md

Author: RoelKroes

README.md

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 # TBTracker-ESP32
-A High Altitude Balloon tracker for ESP32. Supports LoRa, RTTY, Horus V1 4FSK, Horus V2 4FSK
+A Plug and Play High Altitude Balloon tracker for ESP32. Supports LoRa, LoRa-APRS, RTTY, Horus V1 4FSK, Horus V2 4FSK.
+
+TBTracker-ESP32 is an Arduino sketch for a tracker for high altitude weather or scientific balloons. 
+It supports sending telemetry data in mulitple formats:
+- RTTY
+- LoRa
+- LoRa-APRS
+- Horus 4FSK V1
+- Horus 4FSK V2
+
+You can select multiple modes or just a single mode.
+
+It is designed to send telemetry data in the correct format for https://amateur.sondehub.org.
+
+The code is written in the Arduino IDE for ESP32 with a GPS module and a LoRa module like the sx1278 or sx1276 or Hope RFM9x.
+
+# Library
+You will need two install two extra Arduino library from the librairy manager:
+- Radiolib
+- TinyGPS++
+
+# Hardware
+The minimal hardware configuration you need is:
+- ESP32 or ESP32S2 board
+- GPS module (recommended Ublox Neo or ATGM336H)
+- Lora module (sx1278 or sx1276 or Hope RFM9x module)
+
+# Installation
+Connect your LoRa and GPS modules to your ESP board and change the values in the settings.h file.See the comments in the settings.h file.
+
+# Versions
+
+V0.1.0:
+
+- Initial commit