Update app.py

app.py

@@ -16,7 +16,7 @@ add_slider = st.sidebar.slider(
     0.0, 100.0, (25.0, 75.0)
 )
 st.subheader('This is a subheader with a divider', divider='rainbow')
-with st.container(boarder = True):
+with st.container(border = True):
     st.title("Examples")
     col1, col2, col3 = st.columns(3)
     with col1: