Update pre.py

pre.py

@@ -60,6 +60,10 @@ def preprocess_uploaded_file(uploaded_file):
 def add_app_description():
     app_title = '<p style="font-family:Roboto, sans-serif; color:#004E7C; font-size: 42px;">DataLink Compare</p>'
     st.markdown(app_title, unsafe_allow_html=True)
+    
+    # Add the new link here
+    link_html = '<a href="https://scenarioswitcher.negadan77.workers.dev/" target="_blank">Open Scenario Switcher</a>'
+    st.markdown(link_html, unsafe_allow_html=True)
 
     is_selected = st.sidebar.checkbox('Show App Description', value=False)