input: Write a function to find numbers divisible by a given divisor within a range.
  assert find_numbers_divisible_by(1, 10, 2) == [2, 4, 6, 8, 10]
  assert find_numbers_divisible_by(15, 30, 3) == [15, 18, 21, 24, 27, 30]
  assert find_numbers_divisible_by(20, 25, 5) == [20, 25]
output: def find_numbers_divisible_by(start, end, divisor):
      return [i for i in range(start, end + 1) if i % divisor == 0]