feex ma grammer

Co-authored-by: Peter Law <[email protected]>

Author: RealOrangeOne

competition-simulator/programming/index.md

@@ -44,7 +44,7 @@ can result from simulator time not passing at the same rate as real time.
 
 Your robot has one motor board attached, the left wheel in port `m0`, and the right wheel in `m1`.
 
-The motor boards do not have part codes, and so need to be indexed using `0`.
+The motor board does not have a part code, so it needs to be indexed using `0`.
 
 ### Ruggeduino