input: Write a function to sort a list in ascending order.
  assert sort_list([10, 15, 7, 8, 12]) == [7, 8, 10, 12, 15]
  assert sort_list([5, 2, 9, 1, 5, 6]) == [1, 2, 5, 5, 6, 9]
  assert sort_list([3, 0, -1, 8, 4]) == [-1, 0, 3, 4, 8]
output: def sort_list(lst):
      return sorted(lst)