Update app.py

app.py

@@ -232,7 +232,7 @@ with gr.Blocks() as app:
     gr.Markdown("- Currently online demo support PDF document with less than 50 pages due to GPU time limit. Deploy on your own machine for longer PDFs and books.")
     
     with gr.Row():
-        file_input = gr.File(type="binary", label="Upload PDF")
+        file_input = gr.File(type="binary", label="Step 1: Upload PDF")
         file_result = gr.Text(label="Knowledge Base ID (remember it, it is re-usable!)")
         process_button = gr.Button("Process PDF (Don't click until PDF upload success)")
     
@@ -242,7 +242,7 @@ with gr.Blocks() as app:
         kb_id_input = gr.Text(label="Your Knowledge Base ID (paste your Knowledge Base ID here, it is re-usable:)")
         query_input = gr.Text(label="Your Queston")
         topk_input = inputs=gr.Number(value=3, minimum=1, maximum=7, step=1, label="Number of pages to retrieve")
-        retrieve_button = gr.Button("Retrieve")
+        retrieve_button = gr.Button("Step2: Retrieve Pages")
     
     with gr.Row():
         images_output = gr.Gallery(label="Retrieved Pages")
@@ -250,7 +250,7 @@ with gr.Blocks() as app:
     retrieve_button.click(retrieve_gradio, inputs=[kb_id_input, query_input, topk_input], outputs=images_output)
 
     with gr.Row():
-        button = gr.Button("Answer Question with Retrieved Pages")
+        button = gr.Button("Step 3: Answer Question with Retrieved Pages")
 
         gen_model_response = gr.Textbox(label="MiniCPM-V-2.6's Answer")