message: Fix incorrect link of checkpoint files in CNN tutorials
diff: @@ -268,7 +268,7 @@ in `cifar10_input.py`.
  `cifar10_train.py` periodically @{tf.train.Saver$saves}
  all model parameters in
  -@{$variables#saving-and-restoring$checkpoint files}
  +@{$programmers_guide/saved_model$checkpoint files}
  but it does *not* evaluate the model. The checkpoint file
  will be used by `cifar10_eval.py` to measure the predictive
  performance (see [Evaluating a Model](#evaluating-a-model) below).
  