Update app.py

app.py

@@ -112,7 +112,7 @@ with gr.Blocks(theme="Nymbo/Alyx_Theme") as demo:
     with gr.Tab("Indexing"):
         pdf_input = gr.File(label="Upload PDF", file_types=[".pdf"])
         index_button = gr.Button("Index PDF")
-        load_sample = gr.Button("Or load "Attention Is All You Need.pdf" as a Sample")
+        load_sample = gr.Button("Or load [ Attention Is All You Need.pdf ] as a Sample")
         index_output = gr.Textbox(label="Indexing Status")
         index_button.click(index_pdf, inputs=pdf_input, outputs=index_output)
         load_sample.click(load_sample_pdf, inputs=None, outputs=index_output)