Update ddpm_mnist.ipynb

Author: giovannivolpe

Ch10_Diffusion/ec10_1_ddpm_mnist/ddpm_mnist.ipynb

@@ -33,7 +33,7 @@
    "metadata": {},
    "source": [
     "<div style=\"background-color: #f0f8ff; border: 2px solid #4682b4; padding: 10px;\">\n",
-    "<strong>Note:</strong> This notebook contains the Code Example 9-1 from the book  \n",
+    "<strong>Note:</strong> This notebook contains the Code Example 10-1 from the book  \n",
     "\n",
     "**Deep Learning Crash Course**  \n",
     "Benjamin Midtvedt, Jesús Pineda, Henrik Klein Moberg, Harshith Bachimanchi, Joana B. Pereira, Carlo Manzo, Giovanni Volpe  \n",