Merge pull request #197 from arduino/marqdevx/portenta-X8/datasheet-pinout

Portenta X8 datasheet: update pinout

Author: marqdevx

content/hardware/04.pro/boards/portenta-x8/datasheet/assets/x8HDCPinout.jpg

@@ -441,7 +441,7 @@ All Arduino boards have a built-in bootloader which allows flashing the board vi
 
 ## Pinout
 
-![](assets/x8HDCPinout.png)
+![](assets/x8HDCPinout.jpg)
 ## Mounting Holes and Board Outline
 
 ![](assets/x8Mechanical.svg)