Fix arrow-parens

Author: tshemsedinov

Exercises/6-matrix.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const max = matrix => {
+const max = (matrix) => {
   // Use nested for loop to find max value in 2d matrix
   // For example max([[1, 2, 3], [4, 5, 6], [7, 8, 9]])
   // should return 9

Exercises/7-ages.js

@@ -1,6 +1,6 @@
 'use strict';
 
-const ages = persons => {
+const ages = (persons) => {
   // Use for..in to calculate age for each person
   // For example ages({
   //   lenin: { born: 1870, died: 1924 },