Update 04.analog.md

Author: karlsoderby

content/micropython/02.micropython-course/course/05.analog/04.analog.md

@@ -103,7 +103,6 @@ Now, turn the knob, and watch as the LED dims according to the knob's position.
 <source src="assets/pot-led.mp4" type="video/mp4" />
 </video>
 
-
 You've now created a dimmer, something you will find in most modern homes!
 
 ## Summary