Update app.py

app.py

@@ -168,8 +168,8 @@ def create_conversational_rag_chain(retriever):
         n_ctx=25000,
         n_batch=2000,
         max_tokens=350,
-        repeat_penalty=1.9,
-        last_n_tokens_size = 200,
+        repeat_penalty=1.8,
+        last_n_tokens_size = 350,
         callback_manager=callback_manager,
         verbose=False,
     )