Fixed missing spaces in comment

01_Day_JavaScript_Refresher/01_javascript_refresher.md

@@ -590,7 +590,7 @@ const arr = Array() // creates an an empty array
 console.log(arr)
 
 const eightXvalues = Array(8).fill('X') // it creates eight element values filled with 'X'
-console.log(eightXvalues) // ['X', 'X','X','X','X','X','X','X']
+console.log(eightXvalues) // ['X', 'X', 'X', 'X', 'X', 'X', 'X', 'X']
 
 const eight0values = Array(8).fill(0) // it creates eight element values filled with '0'
 console.log(eight0values) // [0, 0, 0, 0, 0, 0, 0, 0]