input: Write a python function to count the occurrences of the word 'the' in a list of words.
  assert count_the(['the', 'quick', 'brown', 'fox', 'jumps', 'over', 'the', 'lazy', 'dog']) == 2
  assert count_the(['The', 'the', 'THE', 'ThE']) == 4
  assert count_the(['hello', 'world']) == 0
output: def count_the(words):
      return sum(1 for word in words if word.lower() == 'the')