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