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", page_icon="")
-    st.header("Text Retrieval-Augmented Generation - Gemini 2.0")
+    st.header("Retrieval-Augmented Generation - Gemini 2.0")
     st.markdown("---")
 
     # Initialize session state