Replace static image with video in prompt-optimization-cookbook.ipynb…

examples/gpt-5/prompt-optimization-cookbook.ipynb

@@ -17,7 +17,10 @@
     "\n",
     "GPT-5 will benefit from all the traditional [prompting best practices](https://cookbook.openai.com/examples/gpt-5/gpt-5_prompting_guide), but to make optimizations and migrations easier, we are introducing the **[GPT-5  Prompt Optimizer](https://platform.openai.com/chat/edit?optimize=true) in our Playground to help users get started on **improving existing prompts** and **migrating prompts** for GPT-5 and other OpenAI models.**\n",
     "\n",
-    "![optimize_image](../../images/image_optimize_landing_2.png)\n",
+    "<video controls width=\"720\" preload=\"metadata\" autoplay loop muted playsinline>\n",
+    "  <source src=\"../../images/prompt-optimizer-3-22s.mp4\" type=\"video/mp4\">\n",
+    "  Your browser does not support the video tag.\n",
+    "</video>\n",
     "\n",
     "In this cookbook we will show you how to use the Prompt Optimzer to get spun up quickly to solve your tasks with GPT-5, while demonstrating how prompt optimize can have measurable improvements. "
    ]