fix bug

app.py

@@ -75,7 +75,7 @@ def process(language: str, repo_id: str, text: str, sid: str, speed: float):
     sid = int(sid)
     
     config = "examples/biaobei/config.yaml"
-    checkpoint = "checkpoints\checkpoint_140000.pth.tar"
+    checkpoint = "checkpoints/checkpoint_140000.pth.tar"
     if os.path.exists(config):
         print("file cunzai ")
     else:
@@ -196,7 +196,7 @@ with demo:
 
 
 if __name__ == "__main__":
-    
+
     formatter = "%(asctime)s %(levelname)s [%(filename)s:%(lineno)d] %(message)s"
 
     logging.basicConfig(format=formatter, level=logging.INFO)