Clarify comments on random number generation

Updated comments to clarify the random number generation process.

Author: anitahy73

Sprint-2/1-key-exercises/4-random.js

@@ -4,7 +4,7 @@ const maximum = 100;
 const num = Math.floor(Math.random() * (maximum - minimum + 1)) + minimum;
 
 // In this exercise, you will need to work out what num represents?It gives us a random number between 1-100
-// Try breaking down the expression and using documentation to explain what it means
+// Try breaking down the expression and using documentation to explain what it means? + minimum shifts it between 1-100 so the minimum number is 1 and the biggest one is 100
  //Math.random gives us a random number between 0-1 and the next parantecec returns 100
 //after that we multiple these two given values between 0-100 and the floor methode rounds down the given value
 // It will help to think about the order in which expressions are evaluated