Update app.py

app.py

@@ -124,7 +124,7 @@ st.session_state.vector_store = load_preprocessed_vectorstore()
 # Initialize chat history if not present
 if "chat_history" not in st.session_state:
     st.session_state.chat_history = [
-        {"author": "assistant", "content": "Hello, I am Precollege. How can I help you?"}
+        {"author": "assistant", "content": "Hello, I am a English Tutor Bot. How can I help you?"}
     ]
 
 # Main app logic