diff --git a/GTSRB/03-Tracking-and-visualizing.ipynb b/GTSRB/03-Tracking-and-visualizing.ipynb
index 9f4e02eb45961efbe341b866e3c8c092c3d485ff..04f50fe3c3494ef617ac4dbea883c26c23cdebac 100644
--- a/GTSRB/03-Tracking-and-visualizing.ipynb
+++ b/GTSRB/03-Tracking-and-visualizing.ipynb
@@ -302,9 +302,10 @@
     "## Step 5 - Prepare callbacks  \n",
     "We will add 2 callbacks :  \n",
     " - **TensorBoard**  \n",
-    "  Training logs, which can be visualised using [Tensorboard tool](https://www.tensorflow.org/tensorboard).  \n",
+    "   Training logs, which can be visualised using [Tensorboard tool](https://www.tensorflow.org/tensorboard).  \n",
     "   Launch a terminal directly through the Jupyter interface : \n",
     "     - Click on Menu button \"File -> New -> Terminal\"  \n",
+    "\n",
     "   Go to directory containing GTSRB notebooks.  \n",
     "   `~$ cd fidle/GTSRB/`  \n",
     "   Then launch :  \n",
@@ -314,6 +315,7 @@
     "   The Tensorboard visualization is available through a browser at :  \n",
     "     - http://localhost:6007 if running training using a Gricad node  \n",
     "     - http://localhost:6006 if running training using your own workstation  \n",
+    "\n",
     "  IMPORTANT : Relaunch tensorboard on every run\n",
     " - **Model backup**  \n",
     " It is possible to save the model each xx epoch or at each improvement.  \n",