Update API_9_video.ipynb

tutorials/API_9_video.ipynb

@@ -5,7 +5,7 @@
    "id": "134e7f9d",
    "metadata": {},
    "source": [
-    "# Demo 9: Videos\n",
+    "# API 9: Videos\n",
     "\n",
     "We have shown one can visualize KAN with the plot() method. If one wants to save the training dynamics of KAN plots, one only needs to pass argument save_video = True to train() method (and set some video related parameters)"
    ]