Update 04-magnetics in notebooks and markdown files

Author: santisoler

notebooks/magnetics/index.md

@@ -13,11 +13,11 @@ Global scale magnetic anomalies over Africa ([image source](https://upload.wikim
 
 ## Tutorial Notebooks
 
-[3D Forward Simulation of Total Magnetic Intensity Data](04-magnetics/fwd_magnetics_induced_3d) $({\color{green}Introductory}$, ${\color{green}Lightweight})$
+[3D Forward Simulation of Total Magnetic Intensity Data](magnetics/fwd_magnetics_induced_3d) $({\color{green}Introductory}$, ${\color{green}Lightweight})$
 <br />
 
-[3D Forward Simulation of Magnetic Gradiometry Data](04-magnetics/fwd_magnetics_mvi_3d) $({\color{green}Introductory}$, ${\color{green}Lightweight})$
+[3D Forward Simulation of Magnetic Gradiometry Data](magnetics/fwd_magnetics_mvi_3d) $({\color{green}Introductory}$, ${\color{green}Lightweight})$
 <br />
 
-[3D Inversion of TMI Data to Recover a Susceptibility Model](04-magnetics/inv_magnetics_induced_3d) $({\color{orange}Intermediate}$, ${\color{green}Lightweight})$
-<br />
+[3D Inversion of TMI Data to Recover a Susceptibility Model](magnetics/inv_magnetics_induced_3d) $({\color{orange}Intermediate}$, ${\color{green}Lightweight})$
+<br />

notebooks/magnetics/inv_magnetics_induced_3d.ipynb

@@ -139,22 +139,22 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "overwriting /home/ssoler/git/user-tutorials/notebooks/04-magnetics/inv_magnetics_induced_3d_files.tar.gz\n",
-      "Downloading https://github.com/simpeg/user-tutorials/raw/main/assets/04-magnetics/inv_magnetics_induced_3d_files.tar.gz\n"
+      "overwriting /home/ssoler/git/user-tutorials/notebooks/magnetics/inv_magnetics_induced_3d_files.tar.gz\n",
+      "Downloading https://github.com/simpeg/user-tutorials/raw/main/assets/magnetics/inv_magnetics_induced_3d_files.tar.gz\n"
      ]
     },
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "   saved to: /home/ssoler/git/user-tutorials/notebooks/04-magnetics/inv_magnetics_induced_3d_files.tar.gz\n",
+      "   saved to: /home/ssoler/git/user-tutorials/notebooks/magnetics/inv_magnetics_induced_3d_files.tar.gz\n",
       "Download completed!\n"
      ]
     }
    ],
    "source": [
     "# URL to download from repository assets\n",
-    "data_source = \"https://github.com/simpeg/user-tutorials/raw/main/assets/04-magnetics/inv_magnetics_induced_3d_files.tar.gz\"\n",
+    "data_source = \"https://github.com/simpeg/user-tutorials/raw/main/assets/magnetics/inv_magnetics_induced_3d_files.tar.gz\"\n",
     "\n",
     "# download the data\n",
     "downloaded_data = download(data_source, overwrite=True)\n",