Update app.py

app.py

@@ -100,12 +100,12 @@ def on_option_change():
   run_test(text,top_k,model_name)
   
 
-def on_model_change1:
+def on_model_change1():
   model_name = st.session_state.my_model1
   st.info("Pre-selected model chosen: " + model_name)
   bert_tokenizer, bert_model  = load_bert_model(model_name)
 
-def on_model_change2:
+def on_model_change2():
   model_name = st.session_state.my_model2
   st.info("Custom model chosen: " + model_name)
   bert_tokenizer, bert_model  = load_bert_model(model_name)