add model for indonesian stories

app.py

@@ -125,7 +125,11 @@ st.markdown(
     """
 )
 
-model_name = st.selectbox('Model',(['GPT-2 Small', 'GPT-2 Medium', 'GPT-2 Small finetuned on Indonesian academic journals']))
+model_name = st.selectbox('Model',([
+    'GPT-2 Small',
+    'GPT-2 Medium',
+    'GPT-2 Small finetuned on Indonesian academic journals',
+    'GPT-2 Small finetuned on Indonesian stories']))
 
 if model_name in ["GPT-2 Small", "GPT-2 Medium"]:
     prompt_group_name = "GPT-2"