Update app.py

app.py

@@ -81,13 +81,14 @@ with gr.Blocks(theme=gr.themes.Soft()) as demo:
     ColPali is model implemented from the [ColPali paper](https://arxiv.org/abs/2407.01449).
 
     This demo allows you to upload PDF files and search for the most relevant pages based on your query.
+    Refresh the page if you change documents !
     """)
     with gr.Row():
         with gr.Column(scale=2):
             gr.Markdown("## 1️⃣ Upload PDFs")
             file = gr.File(file_types=["pdf"], file_count="multiple", label="Upload PDFs")
 
-            convert_button = gr.Button("🔄 Convert and upload")
+            convert_button = gr.Button("🔄 Index documents")
             message = gr.Textbox("Files not yet uploaded", label="Status")
             embeds = gr.State(value=[])
             imgs = gr.State(value=[])