Update usbc.md: Reference to ECG kit assembly

d89e81e8 · Superwallah · deb22da8 · d89e81e8
Commit d89e81e8 authored Sep 08, 2019 by Superwallah
--- a/en/usbc.md
+++ b/en/usbc.md
@@ -34,6 +34,7 @@ To use full I/O, there is a 'correct side up' for the USB-C cable.
 ## SWD
 ## UART
 ## ECG
+External ECG electrodes can be connected via USB-C with a [self-made cable](en/ecg_kit_assembly/).
 ## GPIOs

 ## 'Confirmed' full pin cable options