Update app.py

Cambio modelo a huggingface/OpenAssistant/pythia-12b-sft-v8-rlhf-2k-steps

app.py

@@ -9,7 +9,7 @@ examples = [
 ]
 
 demo = gr.load(
-    "huggingface/gpt2-xl",
+    "huggingface/OpenAssistant/pythia-12b-sft-v8-rlhf-2k-steps",
     inputs=gr.Textbox(lines=5, max_lines=6, label="Input Text"),
     title=title,
     examples=examples,