Update repositories.txt (#7374)

* Update repositories.txt

Arduino library for the I2C MS4525DO pressure and temperature sensor.

* Rename MS4525_RT repository to MS4525DO_RT

Arduino library for the I2C MS4525DO pressure and temperature sensor.

Author: RobTillaart

repositories.txt

@@ -5976,6 +5976,7 @@ https://github.com/RobTillaart/MiniMP3
 https://github.com/RobTillaart/MINMAX
 https://github.com/RobTillaart/ML8511
 https://github.com/RobTillaart/moduloMap
+https://github.com/RobTillaart/MS4525DO_RT
 https://github.com/RobTillaart/MS5611
 https://github.com/RobTillaart/MS5611_SPI
 https://github.com/RobTillaart/MS5837