added an explaination of the code and what is actually does.

Author: M-Abdoon

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

@@ -9,3 +9,13 @@ num = Math.floor(Math.random() * (maximum - minimum) + 1);
 // Try breaking down the expression and using documentation to explain what it means
 // It will help to think about the order in which expressions are evaluated
 // Try logging the value of num and running the program several times to build an idea of what the program is doing
+
+// 1. const minimum = 1; : a variable has the name `minimum` declared. it stores hte 1 value. `const` means this var is unchangeable.
+// 2. const maximum = 100; a variable has the name `maximum` declared. it stores hte 100 value. `const` means this var is unchangeable.
+// 4. num = Math.floor(Math.random() * (maximum - minimum) + 1); : in this line, the variable `num` is declared, it stores a random number
+// between 1 and 100. Math.random() generates a random decimal number between 0 and 1 (exclusive).
+// then it multiplies this random number by (maximum - minimum) to scales it to a range between 0 and 99 (since maximum is 100 and minimum is 1).
+// Adding 1 shifts this range to be between 1 and 100.
+// Math.floor() then rounds down the result number to the nearest whole number, and ensures that num is an integer between 1 and 100.
+
+// So the whole code generates a random integer between 1 and 100 (inclusive) and stores it in the variable num.