remove Julia cat image for license issue

julia/examples/imagenet/ijulia-pretrained-predict/Prediction with Pre-trained Model.ipynb

@@ -17,7 +17,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "Let us first load and display the demo image (try to use other images you like). You will need to install `Images.jl` and `Colors.jl` to load the image."
+    "Let us first load and display the demo image (download it from [here](https://raw.githubusercontent.com/dmlc/web-data/master/mxnet/doc/tutorials/python/predict_image/cat.jpg) or try to use other images you like). You will need to install `Images.jl` and `Colors.jl` to load the image."
    ]
   },
   {
@@ -46,7 +46,7 @@
    ],
    "source": [
     "using Images, Colors, ImageMagick\n",
-    "img = load(\"cat.png\")"
+    "img = load(\"cat.jpg\")"
    ]
   },
   {