new branch called :coursework/sprint-1., created

Author: Mona-Eltantawy

Sprint-1/1-key-exercises/1-count.js

@@ -4,3 +4,8 @@ count = count + 1;
 
 // Line 1 is a variable declaration, creating the count variable with an initial value of 0
 // Describe what line 3 is doing, in particular focus on what = is doing
+
+// line 3 is updating the value of the count variable by adding 1 to its current value.
+//  The = opperator is an assignment opperator that assigns the result of the expression on the right (count+1) to the varibale on the left (count). 
+//  so, if count was 0 befor line 3 is excuted it will be 1 after line 3 is excuted.
+//   And if it was 1 it will be 2 after line 3 is excuted.