Update app.py

app.py

@@ -240,7 +240,7 @@ def display_docs_modal(docs):
 
 
 def hide_source():
-    return gr.Markdown(value=documents.split(label='Source', visible=False))
+    return gr.Markdown(label='Source', visible=False)
 
 
 def ask_llm(system, user_input):
@@ -373,11 +373,10 @@ with gr.Blocks() as demo:
     with gr.Column():
         answer_output = gr.Markdown(label='AI Answer', visible=False)
         md_ref = gr.Markdown(label='Source', visible=False)
-
+        btn_hide_source = gr.Button('Hide', visible=False)
         with gr.Row():
             query_input = gr.Textbox(placeholder="Type your question", label="Question ❔", scale=9, visible=False)
             btn_askGPT = gr.Button("▶", scale=1, visible=False)
-        btn_hide_source = gr.Button('Hide', visible=False)
         with gr.Row():
             btn1 = gr.Button("Ref 1")
             btn2 = gr.Button("Ref 2")