diff --git a/ml3/2_4_0_Intro_NN.ipynb b/ml3/2_4_0_Intro_NN.ipynb
index 83f8d96..9e6e7aa 100644
--- a/ml3/2_4_0_Intro_NN.ipynb
+++ b/ml3/2_4_0_Intro_NN.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "![](images/EscUpmPolit_p.gif \"UPM\")"
+    "![](./images/EscUpmPolit_p.gif \"UPM\")"
    ]
   },
   {
@@ -27,14 +27,14 @@
    "source": [
     "# Introduction to Neural Networks\n",
     " \n",
-    "In this lab session, we are going to learn how to train a neural network.\n",
+    "In this lab session, we will learn how to train a neural network.\n",
     "\n",
     "# Objectives\n",
     "\n",
     "The main objectives of this session are:\n",
     "* Put in practice the notions learn in class about neural computing\n",
     "* Understand what an MLP is\n",
-    "* Learn to use some libraries, such as scikit-learn "
+    "* Learn to use some libraries, such as Scikit-learn."
    ]
   },
   {
@@ -58,7 +58,7 @@
    "metadata": {},
    "source": [
     "## Licence\n",
-    "The notebook is freely licensed under under the [Creative Commons Attribution Share-Alike license](https://creativecommons.org/licenses/by/2.0/).  \n",
+    "The notebook is freely licensed under the [Creative Commons Attribution Share-Alike license](https://creativecommons.org/licenses/by/2.0/).  \n",
     "\n",
     "©  Carlos A. Iglesias, Universidad Politécnica de Madrid."
    ]