add library (arduino#3608)

* Update repositories.txt

* Update repositories.txt

* Update repositories.txt

Author: GyverLibs

repositories.txt

@@ -54,6 +54,7 @@ https://github.com/RobertByrnes/Emulation
 https://github.com/sachinmunasinghe/FirebaseRealtime
 https://github.com/kevinlutzer/Arduino-PM1006K/
 https://github.com/oggysaud245/haversine
+https://github.com/GyverLibs/GyverSegment
 https://github.com/GyverLibs/GyverIO
 https://github.com/GyverLibs/Pairs
 https://github.com/GyverLibs/Stamp