Update name of "DCF77RX"

Author: per1234

Diff for: registry.txt

@@ -7914,7 +7914,7 @@ https://github.com/drmpf/NonBlockingModbusMaster.git|Contributed|NonBlockingModb
 https://github.com/robinz-labs/digishow-rioc.git|Contributed|DigiShow RIOC
 https://github.com/RobTillaart/LTC2485.git|Contributed|LTC2485
 https://github.com/MYCAMEL222/AbleTP.git|Contributed|AbleTP
-https://github.com/dac1e/DCF77RX.git|Contributed|Dcf77Receiver
+https://github.com/dac1e/DCF77RX.git|Contributed|DCF77RX
 https://github.com/snowhalationmkii/TTP229_BS81X_Serial.git|Contributed|TTP229_BS81X_Serial
 https://github.com/Sensirion/arduino-i2c-sfm3304.git|Contributed|Sensirion I2C SFM3304
 https://github.com/ImSpeddy/L298Nlib.git|Contributed|L298Nlib