Update repositories.txt

Added https://github.com/PervasiveDisplays/Pervasive_BWRY_Small

Author: rei-vilo

repositories.txt

@@ -5177,6 +5177,7 @@ https://github.com/rei-vilo/PDLS_Common
 https://github.com/rei-vilo/PDLS_Basic
 https://github.com/PervasiveDisplays/Pervasive_Wide_Medium
 https://github.com/PervasiveDisplays/Pervasive_Wide_Small
+https://github.com/PervasiveDisplays/Pervasive_BWRY_Small
 https://github.com/reiniiriarios/arduino-mqtt-looped
 https://github.com/remicaumette/esp8266-redis
 https://github.com/remocons/boho-arduino