model store of digits

http://developer.download.nvidia.com/compute/machine-learning/modelstore/6.0, This url can not be assessed.I find it in GitHub(https://github.com/NVIDIA/DIGITS/blob/master/docs/ModelStore.md)

That folder is prohibited from directory listing. Therefore, you will see error message when directly browsing that URL.

As long as you can HTTP GET http://developer.download.nvidia.com/compute/machine-learning/modelstore/6.0/master.json, the URL is working.