Update repositories.txt (#5572)

Author: krosDC

repositories.txt

@@ -15,6 +15,7 @@ https://github.com/DigitalCodesign/MentorBit-PIR
 https://github.com/DigitalCodesign/MentorBit-PoteLineal
 https://github.com/DigitalCodesign/MentorBit-Potenciometro
 https://github.com/DigitalCodesign/MentorBit-PoteRueda
+https://github.com/DigitalCodesign/MentorBit-Pulsadores
 https://github.com/median-dispersion/Non-Blocking-Melody
 https://github.com/jobitjoseph/ESPWebFileManager
 https://github.com/playfultechnology/PN5180