add notice.

app.py

@@ -243,7 +243,7 @@ with st.sidebar:
 
 # load logo
 render_svg(open("assets/logo.svg").read())
-
+st.markdown('The current demo runs on the CPU, making it slower than when the GPU is in use (each request takes 2-3 seconds on the GPU). A GPU-based demo is requested to HuggingFace team.')
 
 prompt = create_instruction(in_name, in_about, in_title, in_labels, in_assignees, in_headline_type, in_headlines, in_summary)