Change wording

flowing_light_with_button/README.md

@@ -55,7 +55,7 @@ void checkButtonPressed(void) {
 
 ## Pulse Width Modulation
 
-Pulse Width Modulation (PWM) is essentially a way for digital circuits to pretend to be analog. Essentially, analog circuits can produce signals that have gentle sweeping curves, elegant waves, like God creating the feminine. Digital circuits can only produce on or off values - hard square shapes with sharp edges, like man chiseling facts into stone. 
+Pulse Width Modulation (PWM) is essentially a way for digital circuits to pretend to be analog. Essentially, analog circuits can produce signals that have gentle sweeping curves, elegant waves, like the waves on the sea. Digital circuits can only produce on or off values - hard square shapes with sharp edges, like man chiseling facts into stone. 
 
 ![analog vs digital signals](analog-digital.png)