diff --git a/2_norm_consts.ipynb b/2_norm_consts.ipynb
index a689ae0fff64d45fdfc77502b6e0388f8bc7b0f8..26d2a7873bf1c2241b0b3199f7986be2177b4836 100644
--- a/2_norm_consts.ipynb
+++ b/2_norm_consts.ipynb
@@ -1,5 +1,13 @@
 {
  "cells": [
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Configurar directorios"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -10,6 +18,14 @@
     "FIREDATADIR = 'processed_fire_data/'"
    ]
   },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Cargar bibliotecas"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -21,6 +37,14 @@
     "import os, gc"
    ]
   },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Variables de configuración"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -34,6 +58,14 @@
     "train = [x for x in np.arange(2002,2015) if x not in val+test] "
    ]
   },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Constantes de normalización para variables de entrada:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -56,6 +88,14 @@
     "gc.collect()"
    ]
   },
+  {
+   "attachments": {},
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "# Constantes de normalización para variables objetivo:"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,