updates (#2287)

minor updates

Author: msingh-openai

examples/gpt-5/gpt-5-2_prompting_guide.ipynb

@@ -5,6 +5,8 @@
    "id": "8a2daea7",
    "metadata": {},
    "source": [
+    "# GPT-5.2 Prompting Guide\n",
+    "\n",
     "### 1. Introduction\n",
     "\n",
     "GPT-5.2 is our newest flagship model for enterprise and agentic workloads, designed to deliver higher accuracy, stronger instruction following, and more disciplined execution across complex workflows. Building on GPT-5.1, GPT-5.2 improves token efficiency on medium-to-complex tasks, produces cleaner formatting with less unnecessary verbosity, and shows clear gains in structured reasoning, tool grounding, and multimodal understanding.\n",