Fix output directory in preprocessing and training commands in readme

ablation/readme.txt

@@ -5,7 +5,7 @@ https://github.com/thewh1teagle/ilspeech-train
 uv run python -m piper_train.preprocess \
   --language he \
   --input-dir ./dataset \
-  --output-dir ./train_vocalized_mock \
+  --output-dir ./train_unvocalized_mock \
   --dataset-format ljspeech \
   --single-speaker \
   --sample-rate 22050 \
@@ -13,7 +13,7 @@ uv run python -m piper_train.preprocess \
   --max-workers 6
 
 uv run python -m piper_train \
-    --dataset-dir "./train_vocalized_mock" \
+    --dataset-dir "./train_unvocalized_mock" \
     --accelerator 'gpu' \
     --devices 1 \
     --batch-size 24 \