Fix syntax error

pixel.py

@@ -2,7 +2,7 @@ import time
 import board
 import neopixel
 pixels = neopixel.NeoPixel(board.D18, 24)
-def ledoff:
+def ledoff():
 	pixels.fill((0,0,0))
-def ledon:
+def ledon():
 	pixels.fill((255,255,235))