Update markdown headers in Realtime out-of-band transcription example… (#2252)

Author: minh-hoque

examples/Realtime_out_of_band_transcription.ipynb

@@ -38,9 +38,10 @@
     },
     {
       "cell_type": "markdown",
+      "id": "1c0f46ad",
       "metadata": {},
       "source": [
-        "## 1. Why use out-of-band transcription?\n",
+        "# 1. Why use out-of-band transcription?\n",
         "\n",
         "The Realtime API offers built-in user input transcription, but this relies on a **separate ASR model** (e.g., gpt-4o-transcribe). Using different models for transcription and response generation can lead to discrepancies. For example:\n",
         "\n",
@@ -100,9 +101,10 @@
     },
     {
       "cell_type": "markdown",
+      "id": "63ccae3d",
       "metadata": {},
       "source": [
-        "## 2. Requirements & Setup\n",
+        "# 2. Requirements & Setup\n",
         "\n",
         "Ensure your environment meets these requirements:\n",
         "\n",
@@ -144,7 +146,7 @@
       "id": "d7d60089",
       "metadata": {},
       "source": [
-        "## 3. Prompts\n",
+        "# 3. Prompts\n",
         "\n",
         "We use **two distinct prompts**:\n",
         "\n",
@@ -201,7 +203,7 @@
       "id": "4ddbd683",
       "metadata": {},
       "source": [
-        "## 4. Core configuration\n",
+        "# 4. Core configuration\n",
         "\n",
         "We define:\n",
         "\n",
@@ -291,7 +293,7 @@
       "id": "a905ec16",
       "metadata": {},
       "source": [
-        "## 5. Building the Realtime session & the out‑of‑band request\n",
+        "# 5. Building the Realtime session & the out‑of‑band request\n",
         "\n",
         "The Realtime session (`session.update`) configures:\n",
         "\n",
@@ -394,7 +396,7 @@
       "id": "9afe7911",
       "metadata": {},
       "source": [
-        "## 6. Audio streaming: mic → Realtime → speakers\n",
+        "# 6. Audio streaming: mic → Realtime → speakers\n",
         "\n",
         "We now define:\n",
         "\n",
@@ -506,7 +508,7 @@
       "id": "d02cc1bd",
       "metadata": {},
       "source": [
-        "## 7. Extracting and comparing transcripts\n",
+        "# 7. Extracting and comparing transcripts\n",
         "\n",
         "The function below enables us to generate **two transcripts** for each user turn:\n",
         "\n",
@@ -556,7 +558,7 @@
       "id": "6025bbf6",
       "metadata": {},
       "source": [
-        "## 8. Listening for Realtime events\n",
+        "# 8. Listening for Realtime events\n",
         "\n",
         "`listen_for_events` drives the session:\n",
         "\n",
@@ -739,7 +741,7 @@
       "id": "10c69ded",
       "metadata": {},
       "source": [
-        "## 9. Run Script\n",
+        "# 9. Run Script\n",
         "\n",
         "In this step, we run the the code which will allow us to view the realtime model transcription vs transcription model transcriptions. The code does the following:\n",
         "\n",