tiny fix

Former-commit-id: f7f440986b0ae3b38ea9f2da80789629d4f79ea1

src/llamafactory/train/ppo/workflow.py

@@ -1,6 +1,6 @@
 # Copyright 2024 HuggingFace Inc. and the LlamaFactory team.
 #
-# This code is inspired by HuggingFace's TRL library.
+# This code is inspired by the HuggingFace's TRL library.
 # https://github.com/huggingface/trl/blob/v0.8.0/examples/scripts/ppo.py
 #
 # Licensed under the Apache License, Version 2.0 (the "License");