Update repositories.txt (#4421)

HighASG936 · web-flow · commit 7166e1eda813 · 2024-04-24T05:22:47.000Z
diff --git a/repositories.txt b/repositories.txt
@@ -6891,3 +6891,4 @@ https://github.com/Sensirion/arduino-i2c-sts3x
 https://github.com/Embeddronics-ltd/BLEOTALIBRARY/
 https://github.com/SMotlaq/PI3EQX12908-arduino
 https://github.com/mmarkin/GeoIP
+https://github.com/HighASG936/Mc74hc595a
