LCD lib reference | add "B00000" in createChar() example

In the reference section for createChar() / part of the standard LCD lib

I found this array initialization:

byte smiley[8] = {
  B00000,
  B10001,
  B00000,
  B00000,
  B10001,
  B01110,
  B00000,
};

Note that in the 8 element array the last value is omitted, because it is 0. It could be helpful, especially for persons who new with Arduino, to specify the full array. So it is better usable for persons who wonder why in a 8 element array are only 7 elements.