message: Update smallest-range.py
diff: # Note:
  # The given list may contain duplicates, so ascending order means >= here.
  # 1 <= k <= 3500
  -# -105 <= value of elements <= 10^5.
  +# -10^5 <= value of elements <= 10^5.
  # For Java users, please note that the input type has been changed to List<List<Integer>>.
  # And after you reset the code template, you'll see this point.
  