diff --git a/cookbook/pageindex_RAG_simple.ipynb b/cookbook/pageindex_RAG_simple.ipynb
index fed785c..c1fee4c 100644
--- a/cookbook/pageindex_RAG_simple.ipynb
+++ b/cookbook/pageindex_RAG_simple.ipynb
@@ -33,26 +33,26 @@
         "id": "Ebvn5qfpcG1K"
       },
       "source": [
-        "# 🧠 Simple Vectorless RAG with PageIndex\n",
-        "\n",
-        "PageIndex generates a searchable tree structure of documents, enabling reasoning-based retrieval through tree search — without vectors.\n",
-        "\n",
-        "- **No Vectors Needed**: Uses document structure and LLM reasoning for retrieval.\n",
-        "- **No Chunking Needed**: Documents are organized into natural sections rather than artificial chunks.\n",
-        "- **Human-like Retrieval**: Simulates how human experts navigate and extract knowledge from complex documents. \n",
-        "- **Transparent Retrieval Process**: Retrieval based on reasoning — say goodbye to approximate semantic search ('vibe retrieval')."
+        "# 🧠 Simple Vectorless RAG with PageIndex"
       ]
     },
     {
       "cell_type": "markdown",
       "metadata": {},
       "source": [
+        "PageIndex generates a searchable tree structure of documents, enabling reasoning-based retrieval through tree search — without vectors.\n",
+        "\n",
+        "- **No Vectors Needed**: Uses document structure and LLM reasoning for retrieval.\n",
+        "- **No Chunking Needed**: Documents are organized into natural sections rather than artificial chunks.\n",
+        "- **Human-like Retrieval**: Simulates how human experts navigate and extract knowledge from complex documents. \n",
+        "- **Transparent Retrieval Process**: Retrieval based on reasoning — say goodbye to approximate semantic search (\"vibe retrieval\").\n",
+        "\n",
         "## 📝 About this Notebook\n",
         "\n",
         "This notebook demonstrates a simple example of **vectorless RAG** with PageIndex. You will learn:\n",
-        "- [x] How to build a PageIndex tree structure of a document.\n",
-        "- [x] How to perform reasoning-based retrieval with tree search.\n",
-        "- [x] How to generate the answer based on the retrieved context."
+        "- [x] Build a PageIndex tree structure of a document.\n",
+        "- [x] Perform reasoning-based retrieval with tree search.\n",
+        "- [x] Generate answers based on the retrieved context."
       ]
     },
     {
@@ -335,9 +335,14 @@
         "id": "USoCLOiQcG1O"
       },
       "source": [
-        "## Step 2: Reasoning-Based Retrieval with Tree Search\n",
-        "\n",
-        "### Use LLM for tree search and decide which nodes might contain relevant context"
+        "## Step 2: Reasoning-Based Retrieval with Tree Search"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
+        "### Use LLM for tree search and identify nodes that might contain relevant context"
       ]
     },
     {
@@ -457,8 +462,13 @@
         "id": "10wOZDG_cG1O"
       },
       "source": [
-        "## Step 3: Answer Generation\n",
-        "\n",
+        "## Step 3: Answer Generation"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "metadata": {},
+      "source": [
         "### Extract relevant context from retrieved nodes"
       ]
     },