input: Write a python function to reverse a list of words.
  assert reverse_word_list(['apple', 'banana', 'cherry']) == ['cherry', 'banana', 'apple']
  assert reverse_word_list(['one', 'two', 'three', 'four']) == ['four', 'three', 'two', 'one']
  assert reverse_word_list(['hello', 'world']) == ['world', 'hello']
output: def reverse_word_list(words):
      return words[::-1]