Merge pull request #89 from HongqiZhao/patch-1

Update helper-array.md

docs/guide-zh-CN/helper-array.md

@@ -260,7 +260,7 @@ $array = [
     ['id' => '123', 'name' => 'aaa', 'class' => 'x'],
     ['id' => '124', 'name' => 'bbb', 'class' => 'x'],
     ['id' => '345', 'name' => 'ccc', 'class' => 'y'],
-);
+];
 
 $result = ArrayHelper::map($array, 'id', 'name');
 // 结果是：