Update app.py

app.py

@@ -190,7 +190,7 @@ def demo():
         qa_chain = gr.State()
         collection_name = gr.State()
 
-        document = gr.Files(value = os.listdir('/home/user/app/pdfs/'),visible=False,height=100, file_count="multiple", file_types=["pdf"])
+        document = gr.Files(value = '/home/user/app/pdfs/Annual-Report-2022-2023-English_1.pdf',visible=False,height=100, file_count="multiple", file_types=["pdf"])
         chatbot = gr.Chatbot(height=300)
         db_btn = gr.Radio(["ChromaDB"], label="Vector database type", value = "ChromaDB", type="index", info="Choose your vector database", visible=False)
         with gr.Accordion("Document references", open=False):