diff --git a/Notebooks/Chap04/4_1_Composing_Networks.ipynb b/Notebooks/Chap04/4_1_Composing_Networks.ipynb
index 284fdd3..a8261f0 100644
--- a/Notebooks/Chap04/4_1_Composing_Networks.ipynb
+++ b/Notebooks/Chap04/4_1_Composing_Networks.ipynb
@@ -28,7 +28,7 @@
     {
       "cell_type": "markdown",
       "source": [
-        "#Notebook 4.1 -- Composing networks\n",
+        "# Notebook 4.1 -- Composing networks\n",
         "\n",
         "The purpose of this notebook is to understand what happens when we feed one neural network into another. It works through an example similar to 4.1 and varies both networks\n",
         "\n",
@@ -358,4 +358,4 @@
       "outputs": []
     }
   ]
-}
\ No newline at end of file
+}
diff --git a/Notebooks/Chap04/4_2_Clipping_functions.ipynb b/Notebooks/Chap04/4_2_Clipping_functions.ipynb
index 0dbf46d..95ca408 100644
--- a/Notebooks/Chap04/4_2_Clipping_functions.ipynb
+++ b/Notebooks/Chap04/4_2_Clipping_functions.ipynb
@@ -29,7 +29,7 @@
     {
       "cell_type": "markdown",
       "source": [
-        "#Notebook 4.2 -- Clipping functions\n",
+        "# Notebook 4.2 -- Clipping functions\n",
         "\n",
         "The purpose of this notebook is to understand how a neural network with two hidden layers build more complicated functions by clipping and recombining the representations at the intermediate hidden variables.\n",
         "\n",
@@ -216,4 +216,4 @@
       }
     }
   ]
-}
\ No newline at end of file
+}