Update repositories.txt (#4010)

Blue-Crescent · web-flow · commit 1053f24450d5 · 2024-02-06T13:38:31.000Z
diff --git a/repositories.txt b/repositories.txt
@@ -6651,3 +6651,4 @@ https://gitlab.com/zaber-core-libs/zaber-ascii-for-arduino
 https://gitlab.com/zaber-core-libs/zaber-binary-for-arduino
 https://github.com/BenCestMoiQuoi/I2C_Insarianne
 https://github.com/mkeras/EmbeddedSparkplugNode
+https://github.com/Blue-Crescent/JJYReceiver
