Better use of "let" (#32800)

guide/english/algorithms/sorting-algorithms/bubble-sort/index.md

@@ -55,11 +55,11 @@ Now, the array is already sorted, but our algorithm does not know if it is compl
 
 ### Example in JavaScript
 ```js
-let arr = [1, 4, 7, 45, 7,43, 44, 25, 6, 4, 6, 9];
-let sorted = false
+let arr = [1, 4, 7, 45, 7,43, 44, 25, 6, 4, 6, 9],
+    sorted = false;
 
 while(!sorted) {
-  sorted = true
+  sorted = true;
   for(var i=0; i < arr.length; i++) {
     if(arr[i] < arr[i-1]) {
       let temp = arr[i];