Fix broken web link (#20966)
Fix broken web link (#20966)

Merging to unblock CI - my concerns can be discussed in issue if necessary
apache/incubator-mxnet,apache/incubator-mxnet,DickJC123/mxnet,apache/incubator-mxnet,DickJC123/mxnet,apache/incubator-mxnet,DickJC123/mxnet,DickJC123/mxnet