Update app.py

app.py

@@ -1,6 +1,10 @@
 import streamlit as st
+from utils.save_to_hf import commit_and_push_changes  
 
 st.set_page_config(page_title="Coding Questions App", layout="wide")
 st.title("Welcome to the Coding Questions App!")
 
 st.write("Use the sidebar to navigate between pages.")
+
+if st.sidebar.button("Save to HF"):
+    commit_and_push_changes()