* add build gcn tutorial * add dgl to docker file * add dgl to docker file * Apply suggestions from code review Co-Authored-By: 雾雨魔理沙 <lolisa@marisa.moe> * add dgl to docker file * rerun checks * Revert "add build gcn tutorial" This reverts commit dbe8b5f0e02a13fdd586a9faa58fd1326653afb0. * resolve git issue * resolve git issue * resolve git issue * apply marisa's comment
