input: Write a python function to convert a list of temperatures from Fahrenheit to Celsius.
  assert convert_to_celsius([32, 64, 78, -10]) == [0.0, 17.77777777777778, 25.555555555555557, -23.333333333333332]
  assert convert_to_celsius([212, 98.6, 0, 100]) == [100.0, 37.0, -17.77777777777778, 37.77777777777778]
  assert convert_to_celsius([50, 77, -40, 104]) == [10.0, 25.0, -40.0, 40.0]
output: def convert_to_celsius(fahrenheit_list):
      return [(temp - 32) * 5.0/9.0 for temp in fahrenheit_list]