Enhance code readability with detailed comments

Added comments to explain the purpose of each line in the program.

Author: anitahy73

Sprint-2/3-mandatory-interpret/3-to-pounds.js

@@ -22,6 +22,12 @@ console.log(`£${pounds}.${pence}`);
 
 // You need to do a step-by-step breakdown of each line in this program
 // Try and describe the purpose / rationale behind each step
+//this function penceString.length-1 removes the last p from string so it values 3 because it contains 4 characters minues 1.
+//penceString.substring(0, 3) and it takes the characters from position 0 up to, but not including, position 3.
+//const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");
+//const paddedPenceNumberString = penceStringWithoutTrailingP.padStart(3, "0");This uses padStart() to make sure the string has at least 3 characters.
+//const pounds = paddedPenceNumberString.substring(0, paddedPenceNumberString.length - 2);
+//This line extracts the pounds part.
 
 // To begin, we can start with
 // 1. const penceString = "399p": initialises a string variable with the value "399p"