Update app.py

app.py

@@ -10,6 +10,7 @@ st.title("PDF-Chatbot")
 st.write("Chat with your PDF documents!")
 st.write("Powered by Llama2")
 st.write("Made by Team John Snow")
+st.write("Please reset before uploading a new file")
 
 # Create a file uploader in the sidebar
 # Membuat sidebar dimana file pdf yang akan digunakan oleh chatbot bisa diupload