Update app.py

added label for index name

app.py

@@ -176,6 +176,7 @@ with gr.Blocks() as demo:
 
     # Upload PDF section
     pdf_file = gr.File(label="Upload PDF")
+    gr.Markdown("Index name must be combination of (small letters ,-, number)")
     index_name = gr.Textbox(label="Index Name")
     upload_status = gr.Textbox(label="Status...", lines=1)