change ReadMe

Author: xuyangcao

README.md

@@ -211,10 +211,10 @@ Chnage the `root_dir` in `01_extract_motions.py` with you own dataset path, then
 ```bash
 cd src/prepare_data
 python 01_extract_motions.py
+python 05_extract_audio.py
 python 02_gen_labels.py
 pyhton 03_merge_motions.py
 python 04_gen_template.py
-python 05_extract_audio.py
 
 mv motion_templete.pkl motions.pkl train.json test.json ../../data
 cd ../..