Update app.py

app.py

@@ -19,7 +19,7 @@ def transcribe(audio):
     return text
 
 def gen_sub(video):
-    result = subprocess.check_output(['auto_subtitle','./example.mp4','--model', 'medium'])
+    result = subprocess.check_output(['auto_subtitle','/example.mp4','--model', 'medium'])
     return result
 
 def get_text(url):