Update app.py

app.py

@@ -64,7 +64,7 @@ def user_input(user_question, api_key):
 
 def main():
     st.set_page_config(page_title="Chat PDF")
-    st.header("Retrieval-Augmented Generation - Gemini 2.0 Flash")
+    st.header("Retrieval-Augmented Generation - Gemini 2.0")
     st.markdown("---")
 
     # STEP 1: Enter API key