Removes double entry from README.md
Removes double entry from README.md

Fix for #265

Signed-off-by: Hendrik Hanff <614005e14bf436e325a3657627ee78b12f5f169d@googlemail.com>

MiczFlor/RPi-Jukebox-RFID,MiczFlor/RPi-Jukebox-RFID,MiczFlor/RPi-Jukebox-RFID,MiczFlor/RPi-Jukebox-RFID,MiczFlor/RPi-Jukebox-RFID