update samples updated section

Author: jyaistMap

guide/02-api-overview/release_notes_242.ipynb

@@ -335,6 +335,8 @@
     "  * [Clone a group](/python/latest/samples/clone-a-group/) - Updates to how item is added \n",
     "* [Deep Learning](/python/samples)\n",
     "  * [2D Computer Vision](/python/samples)\n",
+    "    * [Object Classification](/python/samples)\n",
+    "      * [Feature Categorization using Satellite Imagery and Deep Learning](/python/latest/samples/feature-categorization-using-satellite-imagery-and-deep-learning/) - adds *GRAD-CAM* explainability mapping\n",
     "    * [Using Pre-trained Models](/python/samples)\n",
     "      * [Count Cars in Aerial Imagery Using Deep Learning](/python/latest/samples/count-cars-in-aerial-imagery-using-deep-learning/) - narrative updates, additional batch images, and display of time and chart for \n",
     "  * [3D Computer Vision](/python/samples)\n",