add giga r1 wifi

Author: Hannes7eicher

content/learn/05.communication/10.can/can.md

@@ -47,6 +47,7 @@ The default pins on an Arduino board are CAN High and CAN Low. See table below f
 | -------------- | --------- | --------- | ------- | ------- |
 | UNO R4         | D13       | D10       |         |         |
 | DUE            | D68       | D69       | D66     | D53     |
+| GIGA R1 WiFi   | D93       | D94       |         |         |
 | MKR CAN Shield | dedicated | dedicated |         |         |
 
 ## Technical Specifications