input: Write a python function to find the minimum value in a list.
  assert findMinValue([10, 5, 20, -20, 30]) == -20
  assert findMinValue([3, 1, 4, 1, 5, 9, 2]) == 1
  assert findMinValue([100, 200, 300, 0, 400]) == 0
output: def findMinValue(lst):
      return min(lst)