Update repositories.txt (#3243)

added https://github.com/ripred/MyKeywords library

Co-authored-by: Trent M. Wyatt <[email protected]>

Author: per1234

repositories.txt

@@ -6138,3 +6138,4 @@ https://github.com/pablomarquez76/PS4_Controller_Host
 https://github.com/GabyGold67/MomentaryPushButtonsAsSwitches
 https://github.com/supercrab/RemoteSerial
 https://github.com/Xairooo/SimpleTime
+https://github.com/ripred/MyKeywords