Update reference to Github.
Update reference to Github.

chenmoshushi/mlpack,BookChan/mlpack,ersanliqiao/mlpack,theranger/mlpack,thirdwing/mlpack,ajjl/mlpack,erubboli/mlpack,datachand/mlpack,palashahuja/mlpack,BookChan/mlpack,palashahuja/mlpack,minhpqn/mlpack,darcyliu/mlpack,palashahuja/mlpack,ajjl/mlpack,minhpqn/mlpack,Azizou/mlpack,BookChan/mlpack,thirdwing/mlpack,lezorich/mlpack,stereomatchingkiss/mlpack,ersanliqiao/mlpack,ranjan1990/mlpack,theranger/mlpack,darcyliu/mlpack,theranger/mlpack,ranjan1990/mlpack,erubboli/mlpack,trungda/mlpack,trungda/mlpack,ersanliqiao/mlpack,chenmoshushi/mlpack,trungda/mlpack,stereomatchingkiss/mlpack,bmswgnp/mlpack,chenmoshushi/mlpack,datachand/mlpack,lezorich/mlpack,ajjl/mlpack,datachand/mlpack,stereomatchingkiss/mlpack,Azizou/mlpack,erubboli/mlpack,lezorich/mlpack,ranjan1990/mlpack,bmswgnp/mlpack,Azizou/mlpack,minhpqn/mlpack,bmswgnp/mlpack,darcyliu/mlpack,thirdwing/mlpack