Update app.py

app.py

@@ -28,7 +28,7 @@ def toggleValue():
     if st.session_state.Value == "X":
         st.session_state.Value = "O"
     else:
-        st.session_state.Value == "X"
+        st.session_state.Value = "X"
     
 def display_board(num):  
     col1, col2, col3 = st.columns(3)
@@ -53,7 +53,6 @@ def display_board(num):
         st.text(st.session_state.gridNumbers[7])
     with col9:
         st.text(st.session_state.gridNumbers[8])
-
     toggleValue()
 
 def reset_game():