update head of readme

requirements.txt

@@ -15,3 +15,4 @@ torchdiffeq==0.2.5
 openai-whisper==20240930
 httpx==0.28.1
 gradio==5.23.1
+huggingface_hub==0.29.3

tts/gradio_api.py

@@ -20,6 +20,10 @@ import gradio as gr
 import traceback
 from tts.infer_cli import MegaTTS3DiTInfer, convert_to_wav, cut_wav
 
+from huggingface_hub import hf_hub_download
+
+hf_hub_download(repo_id="ByteDance/MegaTTS3", local_dir="./checkpoints")
+
 
 def model_worker(input_queue, output_queue, device_id):
     device = None