fix doc errors (#195)

docs/en_US/tutorials/wav2lip.md

@@ -52,7 +52,7 @@ For the latter, run:
 - For single GPU:
 ```
 export CUDA_VISIBLE_DEVICES=0
-python tools/main.py --confit-file configs/wav2lip_hq.yaml
+python tools/main.py --config-file configs/wav2lip_hq.yaml
 ```
 - For multiple GPUs:
 ```

docs/zh_CN/tutorials/wav2lip.md

@@ -54,7 +54,7 @@ python -m paddle.distributed.launch \
 - GPU单卡训练:
 ```
 export CUDA_VISIBLE_DEVICES=0
-python tools/main.py --confit-file configs/wav2lip_hq.yaml
+python tools/main.py --config-file configs/wav2lip_hq.yaml
 ```
 - GPU多卡训练:
 ```