fixed a typo in doc tensor.ipynb

In Copy & device transfer

# Device -> another Device.
a_gpu_0 = o3c.Tensor([0, 1, 2], device=o3c.Device("CUDA:0"))
a_gpu_1 = a_gpu_0.cuda(0)
print(a_gpu_1)

here a_gpu_0.cuda(0) should be a_gpu_0.cuda(1) to match the variable

docs/jupyter/core/tensor.ipynb

@@ -171,7 +171,7 @@
       "[0 1 2]\n",
       "Tensor[shape={3}, stride={1}, Int64, CPU:0, 0x55d05c254780]\n",
       "[0 1 2]\n",
-      "Tensor[shape={3}, stride={1}, Int64, CUDA:0, 0x7f40ff000000]\n"
+      "Tensor[shape={3}, stride={1}, Int64, CUDA:1, 0x7f40ff000000]\n"
      ]
     }
    ],
@@ -188,7 +188,7 @@
     "\n",
     "# Device -> another Device.\n",
     "a_gpu_0 = o3c.Tensor([0, 1, 2], device=o3c.Device(\"CUDA:0\"))\n",
-    "a_gpu_1 = a_gpu_0.cuda(0)\n",
+    "a_gpu_1 = a_gpu_0.cuda(1)\n",
     "print(a_gpu_1)"
    ]
   },