Remove redundant model = (#663)

appendix-A/01_main-chapter-code/code-part2.ipynb

@@ -331,7 +331,10 @@
     "model = NeuralNetwork(num_inputs=2, num_outputs=2)\n",
     "\n",
     "device = torch.device(\"cuda\" if torch.cuda.is_available() else \"cpu\") # NEW\n",
-    "model = model.to(device) # NEW\n",
+    "model.to(device) # NEW\n",
+    "\n",
+    "# Note that the book originally used the following line, but the \"model =\" is redundant\n",
+    "# model = model.to(device) # NEW\n",
     "\n",
     "optimizer = torch.optim.SGD(model.parameters(), lr=0.5)\n",
     "\n",
@@ -490,7 +493,7 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.10.14"
+   "version": "3.10.16"
   }
  },
  "nbformat": 4,