Fix scope on inception v3 logit layer in README.

Addresses issue #619.

slim/README.md

@@ -295,8 +295,8 @@ $ python train_image_classifier.py \
     --dataset_split_name=train \
     --model_name=inception_v3 \
     --checkpoint_path=${CHECKPOINT_PATH} \
-    --checkpoint_exclude_scopes=InceptionV3/Logits,InceptionV3/AuxLogits/Logits \
-    --trainable_scopes=InceptionV3/Logits,InceptionV3/AuxLogits/Logits
+    --checkpoint_exclude_scopes=InceptionV3/Logits,InceptionV3/AuxLogits \
+    --trainable_scopes=InceptionV3/Logits,InceptionV3/AuxLogits
 ```