Updated notebook

Examples/M2R_plot_streamlines.ipynb

@@ -17,13 +17,27 @@
     "plt.style.use('default')"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "source": [
+    "To use this example you first need to :\n",
+    "1. Put your grid into the `Grids` folder\n",
+    "2. Run M2R with your grid to create an init file and put the file in the `test_data` folder\n",
+    "3. Use the init and the grid file as input to this notebook below"
+   ],
+   "metadata": {
+    "collapsed": false,
+    "pycharm": {
+     "name": "#%% md\n"
+    }
+   }
+  },
   {
    "cell_type": "code",
    "execution_count": 22,
    "outputs": [],
    "source": [
     "ds_full = xr.open_dataset('test_data/Antarctic_init_GLORYS_19930115_to_19930531.nc')\n",
-    "\n",
     "ds_grid=xr.open_dataset(\"Grids/ANT_01.nc\")"
    ],
    "metadata": {