Update dummy_agent_library.ipynb

- Update first cell in the Serverless Api Section, with a description on toggling on access to the HF Token

dummy_agent_library.ipynb

@@ -40,7 +40,7 @@
     "\n",
     "In the Hugging Face ecosystem, there is a convenient feature called Serverless API that allows you to easily run inference on many models. There's no installation or deployment required.\n",
     "\n",
-    "To run this notebook, **you need a Hugging Face token** that you can get from https://hf.co/settings/tokens. If you are running this notebook on Google Colab, you can set it up in the \"settings\" tab under \"secrets\". Make sure to call it \"HF_TOKEN\".\n",
+    "To run this notebook, **you need a Hugging Face token** that you can get from https://hf.co/settings/tokens. If you are running this notebook on Google Colab, you can set it up in the \"settings\" tab under \"secrets\". Make sure to call it \"HF_TOKEN\". And grant access to it via the toggle called **Notebook Access**, the **Secrets Sidebar**. \n",
     "\n",
     "You also need to request access to [the Meta Llama models](meta-llama/Llama-3.2-3B-Instruct), if you haven't done it before. Approval usually takes up to an hour."
    ]