adds dependencies section on detr tutorial

tutorials/hub_detr_finetune_wheat.ipynb

@@ -14,6 +14,25 @@
     "For this tutorial we will be working with the wheat dataset, available on kaggle [here](https://www.kaggle.com/c/global-wheat-detection)."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "## Dependencies"
+   ]
+  },
+  {
+   "cell_type": "markdown",
+   "metadata": {},
+   "source": [
+    "After installing Mantisshrimp ([instructions](https://github.com/lgvaz/mantisshrimp/#install)), install all the dependencies required by Detr ([instructions](https://github.com/facebookresearch/detr#usage)).\n",
+    "\n",
+    "Also, install seaborn for visualizing logs:\n",
+    "```python\n",
+    "pip install seaborn\n",
+    "```"
+   ]
+  },
   {
    "cell_type": "markdown",
    "metadata": {},