Update app.py

app.py

@@ -19,7 +19,7 @@ os.system('pip install git+https://github.com/opendatalab/MinerU.git@dev')
 # os.system(f"sed -i 's|/tmp/models|{model_dir}/models|g' /home/user/magic-pdf.json")
 # os.system(f"sed -i 's|/tmp/layoutreader|{layoutreader_model_dir}|g' /home/user/magic-pdf.json")
 
-os.system('wget https://github.com/opendatalab/MinerU/raw/dev/docs/download_models_hf.py -O download_models_hf.py')
+os.system('wget https://github.com/opendatalab/MinerU/raw/master/docs/download_models_hf.py -O download_models_hf.py')
 os.system('python download_models_hf.py')
 os.system("sed -i 's|cpu|cuda|g' /home/user/magic-pdf.json")