message: address to comments
diff: @@ -1102,10 +1102,9 @@ class ModelCheckpoint(Callback):
  in the filename.
  monitor: quantity to monitor.
  verbose: verbosity mode, 0 or 1.
  - save_best_only: if `save_best_only=True`, not only the "latest best model"
  - according to the quantity monitored will not be overwritten, but also
  - the current model will not be written at all, even if it has another
  - filename than the "latest best model". If `filepath` doesn't contain
  + save_best_only: if `save_best_only=True`, it only saves when the model
  + is considered the "best" and the latest best model according to the
  + quantity monitored will not be overwritten. If `filepath` doesn't contain
  formatting options like `{epoch}` then `filepath` will be overwritten
  by each new better model.
  mode: one of `{auto, min, max}`. If `save_best_only=True`, the decision to
  