Update 01_javascript_refresher.md

I was going through this articles to learn and at the same time i was running them too, at that moment of time i found some changes need to be done in the splice() section.

01_Day_JavaScript_Refresher/01_javascript_refresher.md

@@ -799,7 +799,8 @@ console.log(numbers.splice(0, 1)) // remove the first item
 
 ```js
 const numbers = [1, 2, 3, 4, 5, 6]
-console.log(numbers.splice(3, 3, 7, 8, 9)) // -> [1, 2, 3, 7, 8, 9] //it removes three item and replace three items
+console.log(numbers.splice(3, 3, 7, 8, 9)) // -> [4, 5, 6] here it shows the removed items
+console.log(numbers) // -> [1, 2, 3, 7, 8, 9] //it removes three item and replace three items
 ```
 
 ##### Adding item to an array using push