Hello. I am on STEP 3b: CONSTRUCT THE CONTROLLER of the $50 robot tutorial. About halfway through, in the step where you add the black ground wires, it looks like the leads to one of the 5 pin headers for the programmer are soldered together in a line like the others shown in the pictures above. There was no dedicated pic of this and I am not completely sure when I zoom in. I have attached a pic to clarify my question. Thank you in advance.