Suggestion to add controller location to build guide

[Adam-Edry]

The controller has two columns you can insert the pins into and it is not symmetrical between the two halves so I suggest an additional explanation:
The pins should go into the columns outlined by the silk on the top side of the board. If you are not sure you can match the labels on the board with the labels on the controller.

Best would be to have a picture showing the marking right before the controller part of the guide.

This was the only major issue I had when following the guide which required me to turn for help elsewhere