fix

app.py

@@ -176,7 +176,7 @@ if __name__=='__main__':
                                     ('bert-base-uncased','bert-large-cased',
                                     'roberta-base','roberta-large',
                                     'albert-base-v2','albert-large-v2','albert-xlarge-v2','albert-xxlarge-v2'),index=3)
-        st.sesstion_state['model_name'] = model_name
+        st.session_state['model_name'] = model_name
         if st.button('Confirm',key='model_name'):
             st.session_state['page_status'] = 'type_in'
             st.experimental_rerun()