doc: add ONC parameter explanation in tutorial

Author: kan-fu

doc/source/Tutorial/onc_Library_Tutorial.ipynb

@@ -42,6 +42,14 @@
     "!{sys.executable} -m pip install --upgrade requests pandas onc"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "To begin using the library, you need to create an instance from the `ONC` class, which is a wrapper class for Oceans 3.0 API requests.\n",
+    "All the library's functionality is provided as methods of this class.\n"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -58,6 +66,21 @@
     "onc = ONC(\"YOUR_TOKEN\")"
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "Besides the token parameter, there are several other parameters you can modify to change the behavior of the `ONC` class. For example, you can use\n",
+    "\n",
+    "```python\n",
+    "onc = ONC(\"YOUR_TOKEN\", showInfo=True, outPath=\"YOUR_DIRECTORY\")\n",
+    "```\n",
+    "\n",
+    "to indicate that you want to see verbose messages after running each method, and you want the download directory to be \"./YOUR_DIRECTORY\" instead of the default \"./output\" when calling methods that involve downloading files like `orderDataProduct` and `downloadArchivefile`.\n",
+    "\n",
+    "For more information, check the API reference of the [ONC](https://oceannetworkscanada.github.io/api-python-client/autoapi/onc/index.html#onc.ONC) class.\n"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -756,7 +779,7 @@
     }
    },
    "source": [
-    "Once we have the file names, you can use the method **\"downloadArchivefile()\"** to download individual files:\n"
+    "Once we have the file names, you can use the method `downloadArchivefile()` to download individual files:\n"
    ]
   },
   {