Update variant.cpp

Author: Cincinnatu

variants/XIAO_ESP32C6/variant.cpp

@@ -1,3 +1,8 @@
+#By setting the WIFI_ENABLE and WIFI_ANT_CONFIG pins,
+#the XIAO_ESP32C6 will turn on the on-board antenna by default after power-on
+
+#https://wiki.seeedstudio.com/xiao_esp32c6_getting_started/
+
 #include "esp32-hal-gpio.h"
 #include "pins_arduino.h"