input: Write a python function to sort a list of integers in ascending order.
  assert sort_list([3, 4, 7, 1, 6, 9, 2]) == [1, 2, 3, 4, 6, 7, 9]
  assert sort_list([10, 3, 15, 7, 8]) == [3, 7, 8, 10, 15]
  assert sort_list([5, 4, 3, 2, 1]) == [1, 2, 3, 4, 5]
output: def sort_list(lst):
      return sorted(lst)