Update app.py

app.py

@@ -359,8 +359,8 @@ with gr.Blocks() as gradio_app:
   
   smile = gr.Textbox(label="SMILES for hit expansion")
   with gr.Row():
-    mask_btn = gr.Button("Generate analogues.")
-    sub_btn = gr.Button("Generate analogues.")
+    mask_btn = gr.Button("Generate analogues with Mask-filling.")
+    sub_btn = gr.Button("Generate analogues with substitutions.")
 
   with gr.Row():
     results = gr.Textbox(label="New Molecules: ")