Modif explanation

We use the meta-llama/Llama-3.3-70B-Instruct model throughout the course, but it was mistakenly stating `Llama3.2` in the python comment

unit1/dummy_agent_library.ipynb

@@ -142,7 +142,7 @@
     }
    ],
    "source": [
-    "# If we now add the special tokens related to Llama3.2 model, the behaviour changes and is now the expected one.\n",
+    "# If we now add the special tokens related to Llama3.3 model, the behaviour changes and is now the expected one.\n",
     "prompt=\"\"\"<|begin_of_text|><|start_header_id|>user<|end_header_id|>\n",
     "\n",
     "The capital of france is<|eot_id|><|start_header_id|>assistant<|end_header_id|>\n",