add: saving plot options to getting started page/nb

docs/Getting Started.ipynb

@@ -875,6 +875,38 @@
     "plt.show()"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "id": "3de44f76",
+   "metadata": {},
+   "source": [
+    "#### **Saving the Plot**\n",
+    "\n",
+    "If you want to save the plot, you need to set `show_plot=False`, and then use the respective backend's save method.\n",
+    "\n",
+    "- For matplotlib, you can use `plt.savefig()`\n",
+    "\n",
+    "```python\n",
+    "p = spectrum_df.plot(kind='spectrum', backend='ms_matplotlib', x='mz', y='intensity', show_plot=False)\n",
+    "plt.savefig('spectrum.png')\n",
+    "```\n",
+    "\n",
+    "- For bokeh, you can use `output_file` method to save an html file of th iteractive plot. To save a static plot you can use the tool bar in the interactive plot to save the plot as a png. Or you can use the `export_png` method. However, this requires additional dependencies: `pip install selenium geckodriver firefox`.\n",
+    "\n",
+    "```python\n",
+    "from bokeh.io import output_file\n",
+    "p = spectrum_df.plot(kind='spectrum', backend='ms_bokeh', x='mz', y='intensity', show_plot=False)\n",
+    "output_file(\"spectrum.html\")\n",
+    "```\n",
+    "\n",
+    "- For plotly, you can use `fig.write_html()` method to save an html file of the interactive plot. To save a static plot you can use the tool bar in the interactive plot to save the plot as a png. Or you can use the `write_image` method. However, this requires additional dependencies: `pip install -U kaleido`.\n",
+    "\n",
+    "```python\n",
+    "p = spectrum_df.plot(kind='spectrum', backend='ms_plotly', x='mz', y='intensity', show_plot=False)\n",
+    "p.write_html(\"spectrum.html\")\n",
+    "```"
+   ]
+  },
   {
    "cell_type": "markdown",
    "id": "9c96688c-0b4a-45d7-a491-72392a749e18",