add fig variable

Author: AgnieszkaZaba

examples/notebook_vars.ipynb

@@ -12,7 +12,7 @@
     "from matplotlib import pyplot \n",
     "from open_atmos_jupyter_utils import show_plot\n",
     "\n",
-    "pyplot.figure()\n",
+    "fig = pyplot.figure()\n",
     "show_plot()"
    ],
    "id": "840cd46405eb9d0e",