Update repositories.txt (#3280)

RobTillaart · web-flow · commit 970e62d09072 · 2023-08-31T20:05:54.000Z
Arduino library for DFRobotics MP3 player and compatibles.
diff --git a/repositories.txt b/repositories.txt
@@ -1707,6 +1707,7 @@ https://github.com/RobTillaart/MTP40C
 https://github.com/RobTillaart/MTP40F
 https://github.com/RobTillaart/Max44007
 https://github.com/RobTillaart/Max44009
+https://github.com/RobTillaart/MiniMP3
 https://github.com/RobTillaart/MultiMap
 https://github.com/RobTillaart/Multiplex
 https://github.com/RobTillaart/Optoma
